diff --git a/community-contributions/Reputation_Radar/Dockerfile b/community-contributions/Reputation_Radar/Dockerfile
new file mode 100644
index 0000000..2de26c3
--- /dev/null
+++ b/community-contributions/Reputation_Radar/Dockerfile
@@ -0,0 +1,16 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+ENV STREAMLIT_SERVER_HEADLESS=true \
+    STREAMLIT_SERVER_ADDRESS=0.0.0.0 \
+    STREAMLIT_SERVER_PORT=8501
+
+EXPOSE 8501
+
+CMD ["streamlit", "run", "app.py"]
diff --git a/community-contributions/Reputation_Radar/Makefile b/community-contributions/Reputation_Radar/Makefile
new file mode 100644
index 0000000..60a71c4
--- /dev/null
+++ b/community-contributions/Reputation_Radar/Makefile
@@ -0,0 +1,13 @@
+PYTHON ?= python
+
+.PHONY: install run test
+
+install:
+	$(PYTHON) -m pip install --upgrade pip
+	$(PYTHON) -m pip install -r requirements.txt
+
+run:
+	streamlit run app.py
+
+test:
+	pytest
diff --git a/community-contributions/Reputation_Radar/README.md b/community-contributions/Reputation_Radar/README.md
new file mode 100644
index 0000000..bbeb722
--- /dev/null
+++ b/community-contributions/Reputation_Radar/README.md
@@ -0,0 +1,124 @@
+# 📡 ReputationRadar
+> Real-time brand intelligence with human-readable insights.
+
+ReputationRadar is a Streamlit dashboard that unifies Reddit, Twitter/X, and Trustpilot chatter, classifies sentiment with OpenAI (or VADER fallback), and delivers exportable executive summaries. It ships with modular services, caching, retry-aware scrapers, demo data, and pytest coverage—ready for production hardening or internal deployment.
+
+---
+
+## Table of Contents
+- [Demo](#demo)
+- [Feature Highlights](#feature-highlights)
+- [Architecture Overview](#architecture-overview)
+- [Quick Start](#quick-start)
+- [Configuration & Credentials](#configuration--credentials)
+- [Running Tests](#running-tests)
+- [Working Without API Keys](#working-without-api-keys)
+- [Exports & Deliverables](#exports--deliverables)
+- [Troubleshooting](#troubleshooting)
+- [Legal & Compliance](#legal--compliance)
+
+---
+
+
+## Demo
+
+The video demo of the app can be found at:-
+https://drive.google.com/file/d/1XZ09NOht1H5LCJEbOrAldny2L5SV1DeT/view?usp=sharing
+
+
+## Feature Highlights
+- **Adaptive Ingestion** – Toggle Reddit, Twitter/X, and Trustpilot independently; backoff, caching, and polite scraping keep providers happy.
+- **Smart Sentiment** – Batch OpenAI classification with rationale-aware prompts and auto-fallback to VADER when credentials are missing.
+- **Actionable Summaries** – Executive brief card (highlights, risks, tone, actions) plus refreshed PDF layout that respects margins and typography.
+- **Interactive Insights** – Plotly visuals, per-source filtering, and a lean “Representative Mentions” link list to avoid content overload.
+- **Export Suite** – CSV, Excel (auto-sized columns), and polished PDF snapshots for stakeholder handoffs.
+- **Robust Foundation** – Structured logging, reusable UI components, pytest suites, Dockerfile, and Makefile for frictionless iteration.
+
+---
+
+## Architecture Overview
+```
+community-contributions/Reputation_Radar/
+├── app.py                 # Streamlit orchestrator & layout
+├── components/            # Sidebar, dashboard, summaries, loaders
+├── services/              # Reddit/Twitter clients, Trustpilot scraper, LLM wrapper, utilities
+├── samples/               # Demo JSON payloads (auto-loaded when credentials missing)
+├── tests/                 # Pytest coverage for utilities and LLM fallback
+├── assets/                # Placeholder icons/logo
+├── logs/                  # Streaming log output
+├── requirements.txt       # Runtime dependencies (includes PDF + Excel writers)
+├── Dockerfile             # Containerised deployment recipe
+└── Makefile               # Helper targets for install/run/test
+```
+Each service returns a normalised payload to keep the downstream sentiment pipeline deterministic. Deduplication is handled centrally via fuzzy matching, and timestamps are coerced to UTC before analysis.
+
+---
+
+## Quick Start
+1. **Clone & enter the project directory (`community-contributions/Reputation_Radar`).**
+2. **Install dependencies and launch Streamlit:**
+   ```bash
+   pip install -r requirements.txt && streamlit run app.py
+   ```
+   (Use a virtual environment if preferred.)
+3. **Populate the sidebar:** add your brand name, optional filters, toggled sources, and API credentials (stored only in session state).
+4. **Click “Run Analysis 🚀”** – follow the status indicators as sources load, sentiment processes, and summaries render.
+
+### Optional Docker Run
+```bash
+docker build -t reputation-radar .
+docker run --rm -p 8501:8501 -e OPENAI_API_KEY=your_key reputation-radar
+```
+
+---
+
+## Configuration & Credentials
+The app reads from `.env`, Streamlit secrets, or direct sidebar input. Expected variables:
+
+| Variable | Purpose |
+| --- | --- |
+| `OPENAI_API_KEY` | Enables OpenAI sentiment + executive summary (falls back to VADER if absent). |
+| `REDDIT_CLIENT_ID` | PRAW client ID for Reddit API access. |
+| `REDDIT_CLIENT_SECRET` | PRAW client secret. |
+| `REDDIT_USER_AGENT` | Descriptive user agent (e.g., `ReputationRadar/1.0 by you`). |
+| `TWITTER_BEARER_TOKEN` | Twitter/X v2 recent search bearer token. |
+
+Credential validation mirrors the guidance from `week1/day1.ipynb`—mistyped OpenAI keys surface helpful warnings before analysis begins.
+
+---
+
+## Running Tests
+```bash
+pytest
+```
+Tests cover sentiment fallback behaviour and core sanitisation/deduplication helpers. Extend them as you add new data transforms or UI logic.
+
+---
+
+## Working Without API Keys
+- Reddit/Twitter/Trustpilot can be toggled independently; missing credentials raise gentle warnings rather than hard failures.
+- Curated fixtures in `samples/` automatically load for any disabled source, keeping charts, exports, and PDF output functional in demo mode.
+- The LLM layer drops to VADER sentiment scoring and skips the executive summary when `OPENAI_API_KEY` is absent.
+
+---
+
+## Exports & Deliverables
+- **CSV** – Clean, UTF-8 dataset for quick spreadsheet edits.
+- **Excel** – Auto-sized columns, formatted timestamps, instantaneous import into stakeholder workbooks.
+- **PDF** – Professionally typeset executive summary with bullet lists, consistent margins, and wrapped excerpts (thanks to ReportLab’s Platypus engine).
+
+All exports are regenerated on demand and never persisted server-side.
+
+---
+
+## Troubleshooting
+- **OpenAI key missing/invalid** – Watch the sidebar notices; the app falls back gracefully but no executive summary will be produced.
+- **Twitter 401/403** – Confirm your bearer token scope and that the project has search access enabled.
+- **Rate limiting (429)** – Built-in sleeps help, but repeated requests may require manual pauses. Try narrowing filters or reducing per-source limits.
+- **Trustpilot blocks** – Respect robots.txt. If scraping is denied, switch to the official API or provide compliant CSV imports.
+- **PDF text clipping** – Resolved by the new layout; if you customise templates ensure col widths/table styles remain inside page margins.
+
+---
+
+## Legal & Compliance
+ReputationRadar surfaces public discourse for legitimate monitoring purposes. Always comply with each platform’s Terms of Service, local regulations, and privacy expectations. Avoid storing third-party data longer than necessary, and never commit API keys to version control—the app only keeps them in Streamlit session state.
diff --git a/community-contributions/Reputation_Radar/app.py b/community-contributions/Reputation_Radar/app.py
new file mode 100644
index 0000000..e8243ef
--- /dev/null
+++ b/community-contributions/Reputation_Radar/app.py
@@ -0,0 +1,436 @@
+"""ReputationRadar Streamlit application entrypoint."""
+
+from __future__ import annotations
+
+import io
+import json
+import os
+import re
+from datetime import datetime
+from typing import Dict, List, Optional
+
+import pandas as pd
+import streamlit as st
+from dotenv import load_dotenv
+from reportlab.lib import colors
+from reportlab.lib.pagesizes import letter
+from reportlab.lib.styles import ParagraphStyle, getSampleStyleSheet
+from reportlab.platypus import Paragraph, SimpleDocTemplate, Spacer, Table, TableStyle
+
+from components.dashboard import render_overview, render_source_explorer, render_top_comments
+from components.filters import render_sidebar
+from components.summary import render_summary
+from components.loaders import show_empty_state, source_status
+from services import llm, reddit_client, trustpilot_scraper, twitter_client, utils
+from services.llm import SentimentResult
+from services.utils import (
+    NormalizedItem,
+    ServiceError,
+    ServiceWarning,
+    initialize_logger,
+    load_sample_items,
+    normalize_items,
+    parse_date_range,
+    validate_openai_key,
+)
+
+
+st.set_page_config(page_title="ReputationRadar", page_icon="📡", layout="wide")
+load_dotenv(override=True)
+LOGGER = initialize_logger()
+
+st.title("📡 ReputationRadar")
+st.caption("Aggregate brand chatter, classify sentiment, and surface actionable insights in minutes.")
+
+
+def _get_env_defaults() -> Dict[str, Optional[str]]:
+    """Read supported credentials from environment variables."""
+    return {
+        "OPENAI_API_KEY": os.getenv("OPENAI_API_KEY"),
+        "REDDIT_CLIENT_ID": os.getenv("REDDIT_CLIENT_ID"),
+        "REDDIT_CLIENT_SECRET": os.getenv("REDDIT_CLIENT_SECRET"),
+        "REDDIT_USER_AGENT": os.getenv("REDDIT_USER_AGENT", "ReputationRadar/1.0"),
+        "TWITTER_BEARER_TOKEN": os.getenv("TWITTER_BEARER_TOKEN"),
+    }
+
+
+@st.cache_data(ttl=600, show_spinner=False)
+def cached_reddit_fetch(
+    brand: str,
+    limit: int,
+    date_range: str,
+    min_upvotes: int,
+    client_id: str,
+    client_secret: str,
+    user_agent: str,
+) -> List[NormalizedItem]:
+    credentials = {
+        "client_id": client_id,
+        "client_secret": client_secret,
+        "user_agent": user_agent,
+    }
+    return reddit_client.fetch_mentions(
+        brand=brand,
+        credentials=credentials,
+        limit=limit,
+        date_filter=date_range,
+        min_upvotes=min_upvotes,
+    )
+
+
+@st.cache_data(ttl=600, show_spinner=False)
+def cached_twitter_fetch(
+    brand: str,
+    limit: int,
+    min_likes: int,
+    language: str,
+    bearer: str,
+) -> List[NormalizedItem]:
+    return twitter_client.fetch_mentions(
+        brand=brand,
+        bearer_token=bearer,
+        limit=limit,
+        min_likes=min_likes,
+        language=language,
+    )
+
+
+@st.cache_data(ttl=600, show_spinner=False)
+def cached_trustpilot_fetch(
+    brand: str,
+    language: str,
+    pages: int = 2,
+) -> List[NormalizedItem]:
+    return trustpilot_scraper.fetch_reviews(brand=brand, language=language, pages=pages)
+
+
+def _to_dataframe(items: List[NormalizedItem], sentiments: List[SentimentResult]) -> pd.DataFrame:
+    data = []
+    for item, sentiment in zip(items, sentiments):
+        data.append(
+            {
+                "source": item["source"],
+                "id": item["id"],
+                "url": item.get("url"),
+                "author": item.get("author"),
+                "timestamp": item["timestamp"],
+                "text": item["text"],
+                "label": sentiment.label,
+                "confidence": sentiment.confidence,
+                "meta": json.dumps(item.get("meta", {})),
+            }
+        )
+    df = pd.DataFrame(data)
+    if not df.empty:
+        df["timestamp"] = pd.to_datetime(df["timestamp"])
+    return df
+
+
+def _build_pdf(summary: Optional[Dict[str, str]], df: pd.DataFrame) -> bytes:
+    buffer = io.BytesIO()
+    doc = SimpleDocTemplate(
+        buffer,
+        pagesize=letter,
+        rightMargin=40,
+        leftMargin=40,
+        topMargin=60,
+        bottomMargin=40,
+        title="ReputationRadar Executive Summary",
+    )
+    styles = getSampleStyleSheet()
+    title_style = styles["Title"]
+    subtitle_style = ParagraphStyle(
+        "Subtitle",
+        parent=styles["BodyText"],
+        fontSize=10,
+        leading=14,
+        textColor="#555555",
+    )
+    body_style = ParagraphStyle(
+        "Body",
+        parent=styles["BodyText"],
+        leading=14,
+        fontSize=11,
+    )
+    bullet_style = ParagraphStyle(
+        "Bullet",
+        parent=body_style,
+        leftIndent=16,
+        bulletIndent=8,
+        spaceBefore=2,
+        spaceAfter=2,
+    )
+    heading_style = ParagraphStyle(
+        "SectionHeading",
+        parent=styles["Heading3"],
+        spaceBefore=10,
+        spaceAfter=6,
+    )
+
+    story: List[Paragraph | Spacer | Table] = []
+    story.append(Paragraph("ReputationRadar Executive Summary", title_style))
+    story.append(Spacer(1, 6))
+    story.append(
+        Paragraph(
+            f"Generated on: {datetime.utcnow().strftime('%Y-%m-%d %H:%M')} UTC",
+            subtitle_style,
+        )
+    )
+    story.append(Spacer(1, 18))
+
+    if summary and summary.get("raw"):
+        story.extend(_summary_to_story(summary["raw"], body_style, bullet_style, heading_style))
+    else:
+        story.append(
+            Paragraph(
+                "Executive summary disabled (OpenAI key missing).",
+                body_style,
+            )
+        )
+    story.append(Spacer(1, 16))
+    story.append(Paragraph("Sentiment Snapshot", styles["Heading2"]))
+    story.append(Spacer(1, 10))
+
+    table_data: List[List[Paragraph]] = [
+        [
+            Paragraph("Date", body_style),
+            Paragraph("Sentiment", body_style),
+            Paragraph("Source", body_style),
+            Paragraph("Excerpt", body_style),
+        ]
+    ]
+    snapshot = df.sort_values("timestamp", ascending=False).head(15)
+    for _, row in snapshot.iterrows():
+        excerpt = _truncate_text(row["text"], 180)
+        table_data.append(
+            [
+                Paragraph(row["timestamp"].strftime("%Y-%m-%d %H:%M"), body_style),
+                Paragraph(row["label"].title(), body_style),
+                Paragraph(row["source"].title(), body_style),
+                Paragraph(excerpt, body_style),
+            ]
+        )
+
+    table = Table(table_data, colWidths=[90, 70, 80, 250])
+    table.setStyle(
+        TableStyle(
+            [
+                ("BACKGROUND", (0, 0), (-1, 0), colors.HexColor("#f3f4f6")),
+                ("TEXTCOLOR", (0, 0), (-1, 0), colors.HexColor("#1f2937")),
+                ("FONTNAME", (0, 0), (-1, 0), "Helvetica-Bold"),
+                ("ALIGN", (0, 0), (-1, -1), "LEFT"),
+                ("VALIGN", (0, 0), (-1, -1), "TOP"),
+                ("INNERGRID", (0, 0), (-1, -1), 0.25, colors.HexColor("#d1d5db")),
+                ("BOX", (0, 0), (-1, -1), 0.5, colors.HexColor("#9ca3af")),
+                ("ROWBACKGROUNDS", (0, 1), (-1, -1), [colors.white, colors.HexColor("#f9fafb")]),
+            ]
+        )
+    )
+    story.append(table)
+
+    doc.build(story)
+    buffer.seek(0)
+    return buffer.getvalue()
+
+
+def _summary_to_story(
+    raw_summary: str,
+    body_style: ParagraphStyle,
+    bullet_style: ParagraphStyle,
+    heading_style: ParagraphStyle,
+) -> List[Paragraph | Spacer]:
+    story: List[Paragraph | Spacer] = []
+    lines = [line.strip() for line in raw_summary.splitlines()]
+    for line in lines:
+        if not line:
+            continue
+        clean = re.sub(r"\*\*(.*?)\*\*", r"\1", line)
+        if clean.endswith(":") and len(clean) < 40:
+            story.append(Paragraph(clean.rstrip(":"), heading_style))
+            continue
+        if clean.lower().startswith(("highlights", "risks & concerns", "recommended actions", "overall tone")):
+            story.append(Paragraph(clean, heading_style))
+            continue
+        if line.startswith(("-", "*")):
+            bullet_text = re.sub(r"\*\*(.*?)\*\*", r"\1", line[1:].strip())
+            story.append(Paragraph(bullet_text, bullet_style, bulletText="•"))
+        else:
+            story.append(Paragraph(clean, body_style))
+    story.append(Spacer(1, 10))
+    return story
+
+
+def _truncate_text(text: str, max_length: int) -> str:
+    clean = re.sub(r"\s+", " ", text).strip()
+    if len(clean) <= max_length:
+        return clean
+    return clean[: max_length - 1].rstrip() + "…"
+
+
+def _build_excel(df: pd.DataFrame) -> bytes:
+    buffer = io.BytesIO()
+    export_df = df.copy()
+    export_df["timestamp"] = export_df["timestamp"].dt.strftime("%Y-%m-%d %H:%M")
+    with pd.ExcelWriter(buffer, engine="xlsxwriter") as writer:
+        export_df.to_excel(writer, index=False, sheet_name="Mentions")
+        worksheet = writer.sheets["Mentions"]
+        for idx, column in enumerate(export_df.columns):
+            series = export_df[column].astype(str)
+            max_len = min(60, max(series.map(len).max(), len(column)) + 2)
+            worksheet.set_column(idx, idx, max_len)
+    buffer.seek(0)
+    return buffer.getvalue()
+
+
+def main() -> None:
+    env_defaults = _get_env_defaults()
+    openai_env_key = env_defaults.get("OPENAI_API_KEY") or st.session_state.get("secrets", {}).get("OPENAI_API_KEY")
+    validated_env_key, notices = validate_openai_key(openai_env_key)
+    config = render_sidebar(env_defaults, tuple(notices))
+
+    chosen_key = config["credentials"]["openai"] or validated_env_key
+    openai_key, runtime_notices = validate_openai_key(chosen_key)
+    for msg in runtime_notices:
+        st.sidebar.info(msg)
+
+    run_clicked = st.button("Run Analysis 🚀", type="primary")
+
+    if not run_clicked:
+        show_empty_state("Enter a brand name and click **Run Analysis** to get started.")
+        return
+
+    if not config["brand"]:
+        st.error("Brand name is required.")
+        return
+
+    threshold = parse_date_range(config["date_range"])
+    collected: List[NormalizedItem] = []
+
+    with st.container():
+        if config["sources"]["reddit"]:
+            with source_status("Fetching Reddit mentions") as status:
+                try:
+                    reddit_items = cached_reddit_fetch(
+                        brand=config["brand"],
+                        limit=config["limits"]["reddit"],
+                        date_range=config["date_range"],
+                        min_upvotes=config["min_reddit_upvotes"],
+                        client_id=config["credentials"]["reddit"]["client_id"],
+                        client_secret=config["credentials"]["reddit"]["client_secret"],
+                        user_agent=config["credentials"]["reddit"]["user_agent"],
+                    )
+                    reddit_items = [item for item in reddit_items if item["timestamp"] >= threshold]
+                    status.write(f"Fetched {len(reddit_items)} Reddit items.")
+                    collected.extend(reddit_items)
+                except ServiceWarning as warning:
+                    st.warning(str(warning))
+                    demo = load_sample_items("reddit_sample")
+                    if demo:
+                        st.info("Loaded demo Reddit data.", icon="🧪")
+                        collected.extend(demo)
+                except ServiceError as error:
+                    st.error(f"Reddit fetch failed: {error}")
+        if config["sources"]["twitter"]:
+            with source_status("Fetching Twitter mentions") as status:
+                try:
+                    twitter_items = cached_twitter_fetch(
+                        brand=config["brand"],
+                        limit=config["limits"]["twitter"],
+                        min_likes=config["min_twitter_likes"],
+                        language=config["language"],
+                        bearer=config["credentials"]["twitter"],
+                    )
+                    twitter_items = [item for item in twitter_items if item["timestamp"] >= threshold]
+                    status.write(f"Fetched {len(twitter_items)} tweets.")
+                    collected.extend(twitter_items)
+                except ServiceWarning as warning:
+                    st.warning(str(warning))
+                    demo = load_sample_items("twitter_sample")
+                    if demo:
+                        st.info("Loaded demo Twitter data.", icon="🧪")
+                        collected.extend(demo)
+                except ServiceError as error:
+                    st.error(f"Twitter fetch failed: {error}")
+        if config["sources"]["trustpilot"]:
+            with source_status("Fetching Trustpilot reviews") as status:
+                try:
+                    trustpilot_items = cached_trustpilot_fetch(
+                        brand=config["brand"],
+                        language=config["language"],
+                    )
+                    trustpilot_items = [item for item in trustpilot_items if item["timestamp"] >= threshold]
+                    status.write(f"Fetched {len(trustpilot_items)} reviews.")
+                    collected.extend(trustpilot_items)
+                except ServiceWarning as warning:
+                    st.warning(str(warning))
+                    demo = load_sample_items("trustpilot_sample")
+                    if demo:
+                        st.info("Loaded demo Trustpilot data.", icon="🧪")
+                        collected.extend(demo)
+                except ServiceError as error:
+                    st.error(f"Trustpilot fetch failed: {error}")
+
+    if not collected:
+        show_empty_state("No mentions found. Try enabling more sources or loosening filters.")
+        return
+
+    cleaned = normalize_items(collected)
+    if not cleaned:
+        show_empty_state("All results were filtered out as noise. Try again with different settings.")
+        return
+
+    sentiment_service = llm.LLMService(
+        api_key=config["credentials"]["openai"] or openai_key,
+        batch_size=config["batch_size"],
+    )
+    sentiments = sentiment_service.classify_sentiment_batch([item["text"] for item in cleaned])
+    df = _to_dataframe(cleaned, sentiments)
+
+    render_overview(df)
+    render_top_comments(df)
+
+    summary_payload: Optional[Dict[str, str]] = None
+    if sentiment_service.available():
+        try:
+            summary_payload = sentiment_service.summarize_overall(
+                [{"label": row["label"], "text": row["text"]} for _, row in df.iterrows()]
+            )
+        except ServiceWarning as warning:
+            st.warning(str(warning))
+    else:
+        st.info("OpenAI key missing. Using VADER fallback for sentiment; summary disabled.", icon="ℹ️")
+
+    render_summary(summary_payload)
+    render_source_explorer(df)
+
+    csv_data = df.to_csv(index=False).encode("utf-8")
+    excel_data = _build_excel(df)
+    pdf_data = _build_pdf(summary_payload, df)
+    col_csv, col_excel, col_pdf = st.columns(3)
+    with col_csv:
+        st.download_button(
+            "⬇️ Export CSV",
+            data=csv_data,
+            file_name="reputation_radar.csv",
+            mime="text/csv",
+        )
+    with col_excel:
+        st.download_button(
+            "⬇️ Export Excel",
+            data=excel_data,
+            file_name="reputation_radar.xlsx",
+            mime="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        )
+    with col_pdf:
+        st.download_button(
+            "⬇️ Export PDF Summary",
+            data=pdf_data,
+            file_name="reputation_radar_summary.pdf",
+            mime="application/pdf",
+        )
+
+    st.success("Analysis complete! Review the insights above.")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/community-contributions/Reputation_Radar/components/__init__.py b/community-contributions/Reputation_Radar/components/__init__.py
new file mode 100644
index 0000000..ee63a85
--- /dev/null
+++ b/community-contributions/Reputation_Radar/components/__init__.py
@@ -0,0 +1,5 @@
+"""Reusable Streamlit UI components for ReputationRadar."""
+
+from . import dashboard, filters, loaders, summary
+
+__all__ = ["dashboard", "filters", "loaders", "summary"]
diff --git a/community-contributions/Reputation_Radar/components/dashboard.py b/community-contributions/Reputation_Radar/components/dashboard.py
new file mode 100644
index 0000000..5b73c10
--- /dev/null
+++ b/community-contributions/Reputation_Radar/components/dashboard.py
@@ -0,0 +1,136 @@
+"""Render the ReputationRadar dashboard components."""
+
+from __future__ import annotations
+
+from typing import Dict, Optional
+
+import pandas as pd
+import plotly.express as px
+import streamlit as st
+
+SOURCE_CHIPS = {
+    "reddit": "🔺 Reddit",
+    "twitter": "✖️ Twitter",
+    "trustpilot": "⭐ Trustpilot",
+}
+
+SENTIMENT_COLORS = {
+    "positive": "#4caf50",
+    "neutral": "#90a4ae",
+    "negative": "#ef5350",
+}
+
+
+def render_overview(df: pd.DataFrame) -> None:
+    """Display charts summarising sentiment."""
+    counts = (
+        df["label"]
+        .value_counts()
+        .reindex(["positive", "neutral", "negative"], fill_value=0)
+        .rename_axis("label")
+        .reset_index(name="count")
+    )
+    pie = px.pie(
+        counts,
+        names="label",
+        values="count",
+        color="label",
+        color_discrete_map=SENTIMENT_COLORS,
+        title="Sentiment distribution",
+    )
+    pie.update_traces(textinfo="percent+label")
+
+    ts = (
+        df.set_index("timestamp")
+        .groupby([pd.Grouper(freq="D"), "label"])
+        .size()
+        .reset_index(name="count")
+    )
+    if not ts.empty:
+        ts_plot = px.line(
+            ts,
+            x="timestamp",
+            y="count",
+            color="label",
+            color_discrete_map=SENTIMENT_COLORS,
+            markers=True,
+            title="Mentions over time",
+        )
+    else:
+        ts_plot = None
+
+    col1, col2 = st.columns(2)
+    with col1:
+        st.plotly_chart(pie, use_container_width=True)
+    with col2:
+        if ts_plot is not None:
+            st.plotly_chart(ts_plot, use_container_width=True)
+        else:
+            st.info("Not enough data for a time-series. Try widening the date range.", icon="📆")
+
+
+def render_top_comments(df: pd.DataFrame) -> None:
+    """Show representative comments per sentiment."""
+    st.subheader("Representative Mentions")
+    cols = st.columns(3)
+    for idx, sentiment in enumerate(["positive", "neutral", "negative"]):
+        subset = (
+            df[df["label"] == sentiment]
+            .sort_values("confidence", ascending=False)
+            .head(5)
+        )
+        with cols[idx]:
+            st.caption(sentiment.capitalize())
+            if subset.empty:
+                st.write("No items yet.")
+                continue
+            for _, row in subset.iterrows():
+                chip = SOURCE_CHIPS.get(row["source"], row["source"])
+                author = row.get("author") or "Unknown"
+                timestamp = row["timestamp"].strftime("%Y-%m-%d %H:%M")
+                label = f"{chip} · {author} · {timestamp}"
+                if row.get("url"):
+                    st.markdown(f"- [{label}]({row['url']})")
+                else:
+                    st.markdown(f"- {label}")
+
+
+def render_source_explorer(df: pd.DataFrame) -> None:
+    """Interactive tabular explorer with pagination and filters."""
+    with st.expander("Source Explorer", expanded=False):
+        search_term = st.text_input("Search mentions", key="explorer_search")
+        selected_source = st.selectbox("Source filter", options=["All"] + list(SOURCE_CHIPS.values()))
+        min_conf = st.slider("Minimum confidence", min_value=0.0, max_value=1.0, value=0.0, step=0.1)
+
+        filtered = df.copy()
+        if search_term:
+            filtered = filtered[filtered["text"].str.contains(search_term, case=False, na=False)]
+        if selected_source != "All":
+            source_key = _reverse_lookup(selected_source)
+            if source_key:
+                filtered = filtered[filtered["source"] == source_key]
+        filtered = filtered[filtered["confidence"] >= min_conf]
+
+        if filtered.empty:
+            st.info("No results found. Try widening the date range or removing filters.", icon="🪄")
+            return
+
+        page_size = 10
+        total_pages = max(1, (len(filtered) + page_size - 1) // page_size)
+        page = st.number_input("Page", min_value=1, max_value=total_pages, value=1)
+        start = (page - 1) * page_size
+        end = start + page_size
+
+        explorer_df = filtered.iloc[start:end].copy()
+        explorer_df["source"] = explorer_df["source"].map(SOURCE_CHIPS).fillna(explorer_df["source"])
+        explorer_df["timestamp"] = explorer_df["timestamp"].dt.strftime("%Y-%m-%d %H:%M")
+        explorer_df = explorer_df[["timestamp", "source", "author", "label", "confidence", "text", "url"]]
+
+        st.dataframe(explorer_df, use_container_width=True, hide_index=True)
+
+
+def _reverse_lookup(value: str) -> Optional[str]:
+    for key, chip in SOURCE_CHIPS.items():
+        if chip == value:
+            return key
+    return None
diff --git a/community-contributions/Reputation_Radar/components/filters.py b/community-contributions/Reputation_Radar/components/filters.py
new file mode 100644
index 0000000..98267d3
--- /dev/null
+++ b/community-contributions/Reputation_Radar/components/filters.py
@@ -0,0 +1,128 @@
+"""Sidebar filters and configuration controls."""
+
+from __future__ import annotations
+
+from typing import Dict, Optional, Tuple
+
+import streamlit as st
+
+DATE_RANGE_LABELS = {
+    "24h": "Last 24 hours",
+    "7d": "Last 7 days",
+    "30d": "Last 30 days",
+}
+
+SUPPORTED_LANGUAGES = {
+    "en": "English",
+    "es": "Spanish",
+    "de": "German",
+    "fr": "French",
+}
+
+
+def _store_secret(key: str, value: str) -> None:
+    """Persist sensitive values in session state only."""
+    if value:
+        st.session_state.setdefault("secrets", {})
+        st.session_state["secrets"][key] = value
+
+
+def _get_secret(key: str, default: str = "") -> str:
+    return st.session_state.get("secrets", {}).get(key, default)
+
+
+def render_sidebar(env_defaults: Dict[str, Optional[str]], openai_notices: Tuple[str, ...]) -> Dict[str, object]:
+    """Render all sidebar controls and return configuration."""
+    with st.sidebar:
+        st.header("Tune Your Radar", anchor=False)
+        brand = st.text_input("Brand Name*", value=st.session_state.get("brand_input", ""))
+        if brand:
+            st.session_state["brand_input"] = brand
+
+        date_range = st.selectbox(
+            "Date Range",
+            options=list(DATE_RANGE_LABELS.keys()),
+            format_func=lambda key: DATE_RANGE_LABELS[key],
+            index=1,
+        )
+        min_reddit_upvotes = st.number_input(
+            "Minimum Reddit upvotes",
+            min_value=0,
+            value=st.session_state.get("min_reddit_upvotes", 4),
+        )
+        st.session_state["min_reddit_upvotes"] = min_reddit_upvotes
+        min_twitter_likes = st.number_input(
+            "Minimum X likes",
+            min_value=0,
+            value=st.session_state.get("min_twitter_likes", 100),
+        )
+        st.session_state["min_twitter_likes"] = min_twitter_likes
+        language = st.selectbox(
+            "Language",
+            options=list(SUPPORTED_LANGUAGES.keys()),
+            format_func=lambda key: SUPPORTED_LANGUAGES[key],
+            index=0,
+        )
+
+        st.markdown("### Sources")
+        reddit_enabled = st.toggle("🔺 Reddit", value=st.session_state.get("reddit_enabled", True))
+        twitter_enabled = st.toggle("✖️ Twitter", value=st.session_state.get("twitter_enabled", True))
+        trustpilot_enabled = st.toggle("⭐ Trustpilot", value=st.session_state.get("trustpilot_enabled", True))
+        st.session_state["reddit_enabled"] = reddit_enabled
+        st.session_state["twitter_enabled"] = twitter_enabled
+        st.session_state["trustpilot_enabled"] = trustpilot_enabled
+
+        st.markdown("### API Keys")
+        openai_key_default = env_defaults.get("OPENAI_API_KEY") or _get_secret("OPENAI_API_KEY")
+        openai_key = st.text_input("OpenAI API Key", value=openai_key_default or "", type="password", help="Stored only in this session.")
+        _store_secret("OPENAI_API_KEY", openai_key.strip())
+        reddit_client_id = st.text_input("Reddit Client ID", value=env_defaults.get("REDDIT_CLIENT_ID") or _get_secret("REDDIT_CLIENT_ID"), type="password")
+        reddit_client_secret = st.text_input("Reddit Client Secret", value=env_defaults.get("REDDIT_CLIENT_SECRET") or _get_secret("REDDIT_CLIENT_SECRET"), type="password")
+        reddit_user_agent = st.text_input("Reddit User Agent", value=env_defaults.get("REDDIT_USER_AGENT") or _get_secret("REDDIT_USER_AGENT"))
+        twitter_bearer_token = st.text_input("Twitter Bearer Token", value=env_defaults.get("TWITTER_BEARER_TOKEN") or _get_secret("TWITTER_BEARER_TOKEN"), type="password")
+        _store_secret("REDDIT_CLIENT_ID", reddit_client_id.strip())
+        _store_secret("REDDIT_CLIENT_SECRET", reddit_client_secret.strip())
+        _store_secret("REDDIT_USER_AGENT", reddit_user_agent.strip())
+        _store_secret("TWITTER_BEARER_TOKEN", twitter_bearer_token.strip())
+
+        if openai_notices:
+            for notice in openai_notices:
+                st.info(notice)
+
+        with st.expander("Advanced Options", expanded=False):
+            reddit_limit = st.slider("Reddit results", min_value=10, max_value=100, value=st.session_state.get("reddit_limit", 40), step=5)
+            twitter_limit = st.slider("Twitter results", min_value=10, max_value=100, value=st.session_state.get("twitter_limit", 40), step=5)
+            trustpilot_limit = st.slider("Trustpilot results", min_value=10, max_value=60, value=st.session_state.get("trustpilot_limit", 30), step=5)
+            llm_batch_size = st.slider("OpenAI batch size", min_value=5, max_value=20, value=st.session_state.get("llm_batch_size", 20), step=5)
+            st.session_state["reddit_limit"] = reddit_limit
+            st.session_state["twitter_limit"] = twitter_limit
+            st.session_state["trustpilot_limit"] = trustpilot_limit
+            st.session_state["llm_batch_size"] = llm_batch_size
+
+    return {
+        "brand": brand.strip(),
+        "date_range": date_range,
+        "min_reddit_upvotes": min_reddit_upvotes,
+        "min_twitter_likes": min_twitter_likes,
+        "language": language,
+        "sources": {
+            "reddit": reddit_enabled,
+            "twitter": twitter_enabled,
+            "trustpilot": trustpilot_enabled,
+        },
+        "limits": {
+            "reddit": reddit_limit,
+            "twitter": twitter_limit,
+            "trustpilot": trustpilot_limit,
+        },
+        "batch_size": llm_batch_size,
+        "credentials": {
+            "openai": openai_key.strip(),
+            "reddit": {
+                "client_id": reddit_client_id.strip(),
+                "client_secret": reddit_client_secret.strip(),
+                "user_agent": reddit_user_agent.strip(),
+            },
+            "twitter": twitter_bearer_token.strip(),
+        },
+    }
diff --git a/community-contributions/Reputation_Radar/components/loaders.py b/community-contributions/Reputation_Radar/components/loaders.py
new file mode 100644
index 0000000..72405c1
--- /dev/null
+++ b/community-contributions/Reputation_Radar/components/loaders.py
@@ -0,0 +1,25 @@
+"""Loading indicators and status helpers."""
+
+from __future__ import annotations
+
+from contextlib import contextmanager
+from typing import Iterator
+
+import streamlit as st
+
+
+@contextmanager
+def source_status(label: str) -> Iterator[st.delta_generator.DeltaGenerator]:
+    """Context manager that yields a status widget for source fetching."""
+    status = st.status(label, expanded=True)
+    try:
+        yield status
+        status.update(label=f"{label} ✅", state="complete")
+    except Exception as exc:  # noqa: BLE001
+        status.update(label=f"{label} ⚠️ {exc}", state="error")
+        raise
+
+
+def show_empty_state(message: str) -> None:
+    """Render a friendly empty-state callout."""
+    st.info(message, icon="🔎")
diff --git a/community-contributions/Reputation_Radar/components/summary.py b/community-contributions/Reputation_Radar/components/summary.py
new file mode 100644
index 0000000..9e243b0
--- /dev/null
+++ b/community-contributions/Reputation_Radar/components/summary.py
@@ -0,0 +1,23 @@
+"""Executive summary display components."""
+
+from __future__ import annotations
+
+from typing import Dict, Optional
+
+import streamlit as st
+
+
+def render_summary(summary: Optional[Dict[str, str]]) -> None:
+    """Render executive summary card."""
+    st.subheader("Executive Summary", anchor=False)
+    if not summary:
+        st.warning("Executive summary disabled. Provide an OpenAI API key to unlock this section.", icon="🤖")
+        return
+    st.markdown(
+        """
+        <div style="padding:1rem;border:1px solid #eee;border-radius:0.75rem;background-color:#f9fafb;">
+        """,
+        unsafe_allow_html=True,
+    )
+    st.markdown(summary.get("raw", ""))
+    st.markdown("</div>", unsafe_allow_html=True)
diff --git a/community-contributions/Reputation_Radar/requirements.txt b/community-contributions/Reputation_Radar/requirements.txt
new file mode 100644
index 0000000..f9ffb2a
--- /dev/null
+++ b/community-contributions/Reputation_Radar/requirements.txt
@@ -0,0 +1,16 @@
+streamlit
+praw
+requests
+beautifulsoup4
+pandas
+python-dotenv
+tenacity
+plotly
+openai>=1.0.0
+vaderSentiment
+fuzzywuzzy[speedup]
+python-Levenshtein
+reportlab
+tqdm
+pytest
+XlsxWriter
diff --git a/community-contributions/Reputation_Radar/samples/reddit_sample.json b/community-contributions/Reputation_Radar/samples/reddit_sample.json
new file mode 100644
index 0000000..efdaf88
--- /dev/null
+++ b/community-contributions/Reputation_Radar/samples/reddit_sample.json
@@ -0,0 +1,20 @@
+[
+  {
+    "source": "reddit",
+    "id": "t3_sample1",
+    "url": "https://www.reddit.com/r/technology/comments/sample1",
+    "author": "techfan42",
+    "timestamp": "2025-01-15T14:30:00+00:00",
+    "text": "ReputationRadar did an impressive job resolving our customer issues within hours. Support has been world class!",
+    "meta": {"score": 128, "num_comments": 24, "subreddit": "technology", "type": "submission"}
+  },
+  {
+    "source": "reddit",
+    "id": "t1_sample2",
+    "url": "https://www.reddit.com/r/startups/comments/sample2/comment/sample",
+    "author": "growthguru",
+    "timestamp": "2025-01-14T10:10:00+00:00",
+    "text": "Noticed a spike in downtime alerts with ReputationRadar this week. Anyone else seeing false positives?",
+    "meta": {"score": 45, "subreddit": "startups", "type": "comment", "submission_title": "Monitoring tools"}
+  }
+]
diff --git a/community-contributions/Reputation_Radar/samples/trustpilot_sample.json b/community-contributions/Reputation_Radar/samples/trustpilot_sample.json
new file mode 100644
index 0000000..1fa4e65
--- /dev/null
+++ b/community-contributions/Reputation_Radar/samples/trustpilot_sample.json
@@ -0,0 +1,20 @@
+[
+  {
+    "source": "trustpilot",
+    "id": "trustpilot-001",
+    "url": "https://www.trustpilot.com/review/reputationradar.ai",
+    "author": "Dana",
+    "timestamp": "2025-01-12T11:00:00+00:00",
+    "text": "ReputationRadar has simplified our weekly reporting. The sentiment breakdowns are easy to understand and accurate.",
+    "meta": {"rating": "5 stars"}
+  },
+  {
+    "source": "trustpilot",
+    "id": "trustpilot-002",
+    "url": "https://www.trustpilot.com/review/reputationradar.ai?page=2",
+    "author": "Liam",
+    "timestamp": "2025-01-10T18:20:00+00:00",
+    "text": "Support was responsive, but the Trustpilot integration kept timing out. Hoping for a fix soon.",
+    "meta": {"rating": "3 stars"}
+  }
+]
diff --git a/community-contributions/Reputation_Radar/samples/twitter_sample.json b/community-contributions/Reputation_Radar/samples/twitter_sample.json
new file mode 100644
index 0000000..765cfd1
--- /dev/null
+++ b/community-contributions/Reputation_Radar/samples/twitter_sample.json
@@ -0,0 +1,20 @@
+[
+  {
+    "source": "twitter",
+    "id": "173654001",
+    "url": "https://twitter.com/brandlover/status/173654001",
+    "author": "brandlover",
+    "timestamp": "2025-01-15T16:45:00+00:00",
+    "text": "Huge shoutout to ReputationRadar for flagging sentiment risks ahead of our launch. Saved us hours this morning!",
+    "meta": {"likes": 57, "retweets": 8, "replies": 3, "quote_count": 2}
+  },
+  {
+    "source": "twitter",
+    "id": "173653991",
+    "url": "https://twitter.com/critique/status/173653991",
+    "author": "critique",
+    "timestamp": "2025-01-13T09:12:00+00:00",
+    "text": "The new ReputationRadar dashboard feels laggy and the PDF export failed twice. Dev team please check your rollout.",
+    "meta": {"likes": 14, "retweets": 1, "replies": 5, "quote_count": 0}
+  }
+]
diff --git a/community-contributions/Reputation_Radar/services/__init__.py b/community-contributions/Reputation_Radar/services/__init__.py
new file mode 100644
index 0000000..b6956a1
--- /dev/null
+++ b/community-contributions/Reputation_Radar/services/__init__.py
@@ -0,0 +1,11 @@
+"""Service layer exports for ReputationRadar."""
+
+from . import llm, reddit_client, trustpilot_scraper, twitter_client, utils
+
+__all__ = [
+    "llm",
+    "reddit_client",
+    "trustpilot_scraper",
+    "twitter_client",
+    "utils",
+]
diff --git a/community-contributions/Reputation_Radar/services/llm.py b/community-contributions/Reputation_Radar/services/llm.py
new file mode 100644
index 0000000..f18b547
--- /dev/null
+++ b/community-contributions/Reputation_Radar/services/llm.py
@@ -0,0 +1,147 @@
+"""LLM sentiment analysis and summarization utilities."""
+
+from __future__ import annotations
+
+import json
+import logging
+from dataclasses import dataclass
+from typing import Any, Dict, Iterable, List, Optional, Sequence
+
+try:  # pragma: no cover - optional dependency
+    from openai import OpenAI
+except ModuleNotFoundError:  # pragma: no cover
+    OpenAI = None  # type: ignore[assignment]
+
+from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
+
+from .utils import ServiceWarning, chunked
+
+CLASSIFICATION_SYSTEM_PROMPT = "You are a precise brand-sentiment classifier. Output JSON only."
+SUMMARY_SYSTEM_PROMPT = "You analyze brand chatter and produce concise, executive-ready summaries."
+
+
+@dataclass
+class SentimentResult:
+    """Structured sentiment output."""
+
+    label: str
+    confidence: float
+
+
+class LLMService:
+    """Wrapper around OpenAI with VADER fallback."""
+
+    def __init__(self, api_key: Optional[str], model: str = "gpt-4o-mini", batch_size: int = 20):
+        self.batch_size = max(1, batch_size)
+        self.model = model
+        self.logger = logging.getLogger("services.llm")
+        self._client: Optional[Any] = None
+        self._analyzer = SentimentIntensityAnalyzer()
+        if api_key and OpenAI is not None:
+            try:
+                self._client = OpenAI(api_key=api_key)
+            except Exception as exc:  # noqa: BLE001
+                self.logger.warning("Failed to initialize OpenAI client, using VADER fallback: %s", exc)
+                self._client = None
+        elif api_key and OpenAI is None:
+            self.logger.warning("openai package not installed; falling back to VADER despite API key.")
+
+    def available(self) -> bool:
+        """Return whether OpenAI-backed features are available."""
+        return self._client is not None
+
+    def classify_sentiment_batch(self, texts: Sequence[str]) -> List[SentimentResult]:
+        """Classify multiple texts, chunking if necessary."""
+        if not texts:
+            return []
+        if not self.available():
+            return [self._vader_sentiment(text) for text in texts]
+
+        results: List[SentimentResult] = []
+        for chunk in chunked(list(texts), self.batch_size):
+            prompt_lines = ["Classify each item as \"positive\", \"neutral\", or \"negative\".", "Also output a confidence score between 0 and 1.", "Return an array of objects: [{\"label\": \"...\", \"confidence\": 0.0}].", "Items:"]
+            prompt_lines.extend([f"{idx + 1}) {text}" for idx, text in enumerate(chunk)])
+            prompt = "\n".join(prompt_lines)
+            try:
+                response = self._client.responses.create(  # type: ignore[union-attr]
+                    model=self.model,
+                    input=[
+                        {"role": "system", "content": CLASSIFICATION_SYSTEM_PROMPT},
+                        {"role": "user", "content": prompt},
+                    ],
+                    temperature=0,
+                    max_output_tokens=500,
+                )
+                output_text = self._extract_text(response)
+                parsed = json.loads(output_text)
+                for item in parsed:
+                    results.append(
+                        SentimentResult(
+                            label=item.get("label", "neutral"),
+                            confidence=float(item.get("confidence", 0.5)),
+                        )
+                    )
+            except Exception as exc:  # noqa: BLE001
+                self.logger.warning("Classification fallback to VADER due to error: %s", exc)
+                for text in chunk:
+                    results.append(self._vader_sentiment(text))
+        # Ensure the output length matches input
+        if len(results) != len(texts):
+            # align by padding with neutral
+            results.extend([SentimentResult(label="neutral", confidence=0.33)] * (len(texts) - len(results)))
+        return results
+
+    def summarize_overall(self, findings: List[Dict[str, Any]]) -> Dict[str, Any]:
+        """Create an executive summary using OpenAI."""
+        if not self.available():
+            raise ServiceWarning("OpenAI API key missing. Summary unavailable.")
+        prompt_lines = [
+            "Given these labeled items and their short rationales, write:",
+            "- 5 bullet \"Highlights\"",
+            "- 5 bullet \"Risks & Concerns\"",
+            "- One-line \"Overall Tone\" (Positive/Neutral/Negative with brief justification)",
+            "- 3 \"Recommended Actions\"",
+            "Keep it under 180 words total. Be specific but neutral in tone.",
+            "Items:",
+        ]
+        for idx, item in enumerate(findings, start=1):
+            prompt_lines.append(
+                f"{idx}) [{item.get('label','neutral').upper()}] {item.get('text','')}"
+            )
+        prompt = "\n".join(prompt_lines)
+        try:
+            response = self._client.responses.create(  # type: ignore[union-attr]
+                model=self.model,
+                input=[
+                    {"role": "system", "content": SUMMARY_SYSTEM_PROMPT},
+                    {"role": "user", "content": prompt},
+                ],
+                temperature=0.2,
+                max_output_tokens=800,
+            )
+            output_text = self._extract_text(response)
+            return {"raw": output_text}
+        except Exception as exc:  # noqa: BLE001
+            self.logger.error("Failed to generate summary: %s", exc)
+            raise ServiceWarning("Unable to generate executive summary at this time.") from exc
+
+    def _vader_sentiment(self, text: str) -> SentimentResult:
+        scores = self._analyzer.polarity_scores(text)
+        compound = scores["compound"]
+        if compound >= 0.2:
+            label = "positive"
+        elif compound <= -0.2:
+            label = "negative"
+        else:
+            label = "neutral"
+        confidence = min(1.0, max(0.0, abs(compound)))
+        return SentimentResult(label=label, confidence=confidence)
+
+    def _extract_text(self, response: Any) -> str:
+        """Support multiple OpenAI client response shapes."""
+        if hasattr(response, "output") and response.output:
+            content = response.output[0].content[0]
+            return getattr(content, "text", str(content))
+        if hasattr(response, "choices"):
+            return response.choices[0].message.content  # type: ignore[return-value]
+        raise ValueError("Unknown response structure from OpenAI client.")
diff --git a/community-contributions/Reputation_Radar/services/reddit_client.py b/community-contributions/Reputation_Radar/services/reddit_client.py
new file mode 100644
index 0000000..f66f52e
--- /dev/null
+++ b/community-contributions/Reputation_Radar/services/reddit_client.py
@@ -0,0 +1,141 @@
+"""Reddit data collection service using PRAW."""
+
+from __future__ import annotations
+
+import time
+from datetime import datetime, timezone
+from typing import Dict, Iterable, List, Optional
+
+import praw
+from praw.models import Comment, Submission
+
+from .utils import (
+    NormalizedItem,
+    ServiceError,
+    ServiceWarning,
+    ensure_timezone,
+    sanitize_text,
+)
+
+
+TIME_FILTER_MAP = {
+    "24h": "day",
+    "7d": "week",
+    "30d": "month",
+}
+
+
+def _iter_submissions(subreddit: praw.models.Subreddit, query: str, limit: int, time_filter: str) -> Iterable[Submission]:
+    return subreddit.search(query=query, sort="new", time_filter=time_filter, limit=limit * 3)
+
+
+def _iter_comments(submission: Submission) -> Iterable[Comment]:
+    submission.comments.replace_more(limit=0)
+    return submission.comments.list()
+
+
+def _normalize_submission(submission: Submission) -> NormalizedItem:
+    created = datetime.fromtimestamp(submission.created_utc, tz=timezone.utc)
+    return NormalizedItem(
+        source="reddit",
+        id=submission.id,
+        url=f"https://www.reddit.com{submission.permalink}",
+        author=str(submission.author) if submission.author else None,
+        timestamp=ensure_timezone(created),
+        text=f"{submission.title}\n\n{submission.selftext or ''}",
+        meta={
+            "score": submission.score,
+            "num_comments": submission.num_comments,
+            "subreddit": submission.subreddit.display_name,
+            "type": "submission",
+        },
+    )
+
+
+def _normalize_comment(comment: Comment, submission: Submission) -> NormalizedItem:
+    created = datetime.fromtimestamp(comment.created_utc, tz=timezone.utc)
+    return NormalizedItem(
+        source="reddit",
+        id=comment.id,
+        url=f"https://www.reddit.com{comment.permalink}",
+        author=str(comment.author) if comment.author else None,
+        timestamp=ensure_timezone(created),
+        text=comment.body,
+        meta={
+            "score": comment.score,
+            "subreddit": submission.subreddit.display_name,
+            "type": "comment",
+            "submission_title": submission.title,
+        },
+    )
+
+
+def fetch_mentions(
+    brand: str,
+    credentials: Dict[str, str],
+    limit: int = 25,
+    date_filter: str = "7d",
+    min_upvotes: int = 0,
+) -> List[NormalizedItem]:
+    """Fetch recent Reddit submissions/comments mentioning the brand."""
+    client_id = credentials.get("client_id")
+    client_secret = credentials.get("client_secret")
+    user_agent = credentials.get("user_agent")
+
+    if not all([client_id, client_secret, user_agent]):
+        raise ServiceWarning("Reddit credentials are missing. Provide them in the sidebar to enable this source.")
+
+    try:
+        reddit = praw.Reddit(
+            client_id=client_id,
+            client_secret=client_secret,
+            user_agent=user_agent,
+        )
+        reddit.read_only = True
+    except Exception as exc:  # noqa: BLE001
+        raise ServiceError(f"Failed to initialize Reddit client: {exc}") from exc
+
+    time_filter = TIME_FILTER_MAP.get(date_filter.lower(), "week")
+    subreddit = reddit.subreddit("all")
+    results: List[NormalizedItem] = []
+    seen_ids: set[str] = set()
+    try:
+        for submission in _iter_submissions(subreddit, query=brand, limit=limit, time_filter=time_filter):
+            if submission.id in seen_ids:
+                continue
+            if submission.score < min_upvotes:
+                continue
+            normalized_submission = _normalize_submission(submission)
+            normalized_submission["text"] = sanitize_text(normalized_submission["text"])
+            if normalized_submission["text"]:
+                results.append(normalized_submission)
+                seen_ids.add(submission.id)
+            if len(results) >= limit:
+                break
+
+            # Fetch comments mentioning the brand
+            match_count = 0
+            for comment in _iter_comments(submission):
+                if brand.lower() not in (comment.body or "").lower():
+                    continue
+                if comment.score < min_upvotes:
+                    continue
+                normalized_comment = _normalize_comment(comment, submission)
+                normalized_comment["text"] = sanitize_text(normalized_comment["text"])
+                if not normalized_comment["text"]:
+                    continue
+                if normalized_comment["id"] in seen_ids:
+                    continue
+                results.append(normalized_comment)
+                seen_ids.add(normalized_comment["id"])
+                match_count += 1
+                if len(results) >= limit:
+                    break
+            if len(results) >= limit:
+                break
+            # Respect rate limits
+            if match_count:
+                time.sleep(1)
+    except Exception as exc:  # noqa: BLE001
+        raise ServiceError(f"Error while fetching Reddit data: {exc}") from exc
+    return results
diff --git a/community-contributions/Reputation_Radar/services/trustpilot_scraper.py b/community-contributions/Reputation_Radar/services/trustpilot_scraper.py
new file mode 100644
index 0000000..95e2863
--- /dev/null
+++ b/community-contributions/Reputation_Radar/services/trustpilot_scraper.py
@@ -0,0 +1,138 @@
+"""Trustpilot scraping service with polite crawling safeguards."""
+
+from __future__ import annotations
+
+import time
+from datetime import datetime, timezone
+from typing import Dict, List
+from urllib.parse import urlencode
+from urllib.robotparser import RobotFileParser
+
+import requests
+from bs4 import BeautifulSoup
+from tenacity import retry, retry_if_exception_type, stop_after_attempt, wait_exponential
+
+from .utils import (
+    NormalizedItem,
+    ServiceError,
+    ServiceWarning,
+    ensure_timezone,
+    random_user_agent,
+    sanitize_text,
+)
+
+BASE_URL = "https://www.trustpilot.com"
+SEARCH_PATH = "/search"
+
+
+class BlockedError(ServiceWarning):
+    """Raised when Trustpilot blocks the scraping attempt."""
+
+
+def _check_robots(user_agent: str) -> None:
+    parser = RobotFileParser()
+    parser.set_url(f"{BASE_URL}/robots.txt")
+    parser.read()
+    if not parser.can_fetch(user_agent, SEARCH_PATH):
+        raise ServiceWarning(
+            "Trustpilot robots.txt disallows scraping the search endpoint. "
+            "Please use the official API or upload data manually."
+        )
+
+
+@retry(
+    reraise=True,
+    stop=stop_after_attempt(3),
+    wait=wait_exponential(multiplier=1, min=1, max=8),
+    retry=retry_if_exception_type((requests.RequestException, BlockedError)),
+)
+def _fetch_page(session: requests.Session, user_agent: str, page: int, brand: str, language: str) -> str:
+    params = {"query": brand, "page": page}
+    if language:
+        params["languages"] = language
+    url = f"{BASE_URL}{SEARCH_PATH}?{urlencode(params)}"
+    response = session.get(
+        url,
+        headers={"User-Agent": user_agent, "Accept-Language": language or "en"},
+        timeout=20,
+    )
+    if response.status_code in (401, 403):
+        raise BlockedError("Trustpilot denied access (HTTP 403).")
+    response.raise_for_status()
+    return response.text
+
+
+def _parse_reviews(html: str, user_agent: str) -> List[NormalizedItem]:
+    soup = BeautifulSoup(html, "html.parser")
+    cards = soup.select("article[data-service-review-card-layout]")
+    items: List[NormalizedItem] = []
+    now = datetime.now(timezone.utc)
+    for card in cards:
+        link = card.select_one("a.link_internal__YpiJI")
+        url = f"{BASE_URL}{link['href']}" if link and link.get("href") else ""
+        title_el = card.select_one("h2")
+        title = title_el.get_text(strip=True) if title_el else ""
+        text_el = card.select_one("[data-review-description-typography]")
+        text = text_el.get_text(separator=" ", strip=True) if text_el else ""
+        rating_el = card.select_one("img[alt*='stars']")
+        rating = rating_el["alt"] if rating_el and rating_el.get("alt") else ""
+        author_el = card.select_one("span.styles_consumerDetails__ZF4I6")
+        author = author_el.get_text(strip=True) if author_el else None
+        date_el = card.select_one("time")
+        timestamp = now
+        if date_el and date_el.get("datetime"):
+            try:
+                timestamp = datetime.fromisoformat(date_el["datetime"].replace("Z", "+00:00"))
+            except ValueError:
+                timestamp = now
+
+        body = sanitize_text(f"{title}\n\n{text}")
+        if len(body) < 15:
+            continue
+        items.append(
+            NormalizedItem(
+                source="trustpilot",
+                id=card.get("data-review-id", str(hash(body))),
+                url=url,
+                author=author,
+                timestamp=ensure_timezone(timestamp),
+                text=body,
+                meta={
+                    "rating": rating,
+                    "user_agent": user_agent,
+                },
+            )
+        )
+    return items
+
+
+def fetch_reviews(brand: str, language: str = "en", pages: int = 2) -> List[NormalizedItem]:
+    """Scrape Trustpilot search results for recent reviews."""
+    if not brand:
+        raise ServiceWarning("Brand name is required for Trustpilot scraping.")
+
+    session = requests.Session()
+    user_agent = random_user_agent()
+    _check_robots(user_agent)
+
+    aggregated: List[NormalizedItem] = []
+    seen_ids: set[str] = set()
+
+    for page in range(1, pages + 1):
+        try:
+            html = _fetch_page(session, user_agent=user_agent, page=page, brand=brand, language=language)
+        except BlockedError as exc:
+            raise ServiceWarning(
+                "Trustpilot blocked the scraping attempt. Consider using their official API or providing CSV uploads."
+            ) from exc
+        except requests.RequestException as exc:  # noqa: BLE001
+            raise ServiceError(f"Trustpilot request failed: {exc}") from exc
+        page_items = _parse_reviews(html, user_agent)
+        for item in page_items:
+            if item["id"] in seen_ids:
+                continue
+            aggregated.append(item)
+            seen_ids.add(item["id"])
+        time.sleep(1.5)  # gentle crawl delay
+
+    return aggregated
diff --git a/community-contributions/Reputation_Radar/services/twitter_client.py b/community-contributions/Reputation_Radar/services/twitter_client.py
new file mode 100644
index 0000000..53a4c23
--- /dev/null
+++ b/community-contributions/Reputation_Radar/services/twitter_client.py
@@ -0,0 +1,98 @@
+"""Twitter (X) data collection using the v2 recent search API."""
+
+from __future__ import annotations
+
+import time
+from datetime import datetime, timezone
+from typing import Dict, List, Optional
+
+import requests
+
+from .utils import NormalizedItem, ServiceError, ServiceWarning, ensure_timezone, sanitize_text
+
+SEARCH_URL = "https://api.twitter.com/2/tweets/search/recent"
+
+
+def _build_query(brand: str, language: str) -> str:
+    terms = [brand]
+    if language:
+        terms.append(f"lang:{language}")
+    return " ".join(terms)
+
+
+def fetch_mentions(
+    brand: str,
+    bearer_token: Optional[str],
+    limit: int = 25,
+    min_likes: int = 0,
+    language: str = "en",
+) -> List[NormalizedItem]:
+    """Fetch recent tweets mentioning the brand."""
+    if not bearer_token:
+        raise ServiceWarning(
+            "Twitter bearer token not provided. Add it in the sidebar to enable Twitter ingestion."
+        )
+
+    headers = {
+        "Authorization": f"Bearer {bearer_token}",
+        "User-Agent": "ReputationRadar/1.0",
+    }
+    params = {
+        "query": _build_query(brand, language),
+        "max_results": min(100, limit),
+        "tweet.fields": "author_id,created_at,lang,public_metrics",
+        "expansions": "author_id",
+        "user.fields": "name,username",
+    }
+
+    collected: List[NormalizedItem] = []
+    next_token: Optional[str] = None
+
+    while len(collected) < limit:
+        if next_token:
+            params["next_token"] = next_token
+        response = requests.get(SEARCH_URL, headers=headers, params=params, timeout=15)
+        if response.status_code == 401:
+            raise ServiceWarning("Twitter API authentication failed. Please verify the bearer token.")
+        if response.status_code == 429:
+            time.sleep(5)
+            continue
+        if response.status_code >= 400:
+            raise ServiceError(f"Twitter API error {response.status_code}: {response.text}")
+
+        payload = response.json()
+        data = payload.get("data", [])
+        includes = payload.get("includes", {})
+        users_index = {user["id"]: user for user in includes.get("users", [])}
+
+        for tweet in data:
+            created_at = datetime.fromisoformat(tweet["created_at"].replace("Z", "+00:00"))
+            author_info = users_index.get(tweet["author_id"], {})
+            item = NormalizedItem(
+                source="twitter",
+                id=tweet["id"],
+                url=f"https://twitter.com/{author_info.get('username','')}/status/{tweet['id']}",
+                author=author_info.get("username"),
+                timestamp=ensure_timezone(created_at),
+                text=sanitize_text(tweet["text"]),
+                meta={
+                    "likes": tweet.get("public_metrics", {}).get("like_count", 0),
+                    "retweets": tweet.get("public_metrics", {}).get("retweet_count", 0),
+                    "replies": tweet.get("public_metrics", {}).get("reply_count", 0),
+                    "quote_count": tweet.get("public_metrics", {}).get("quote_count", 0),
+                },
+            )
+            if not item["text"]:
+                continue
+            if item["meta"]["likes"] < min_likes:
+                continue
+            collected.append(item)
+            if len(collected) >= limit:
+                break
+
+        next_token = payload.get("meta", {}).get("next_token")
+        if not next_token:
+            break
+        time.sleep(1)  # stay friendly to rate limits
+
+    return collected[:limit]
diff --git a/community-contributions/Reputation_Radar/services/utils.py b/community-contributions/Reputation_Radar/services/utils.py
new file mode 100644
index 0000000..d9b930c
--- /dev/null
+++ b/community-contributions/Reputation_Radar/services/utils.py
@@ -0,0 +1,217 @@
+"""Utility helpers for ReputationRadar services."""
+
+from __future__ import annotations
+
+import json
+import logging
+import os
+import random
+import re
+from dataclasses import dataclass
+from datetime import datetime, timedelta, timezone
+from pathlib import Path
+from typing import Dict, Iterable, Iterator, List, Optional, Sequence, Tuple, TypedDict
+
+from bs4 import BeautifulSoup
+from fuzzywuzzy import fuzz
+
+
+LOG_FILE = Path(__file__).resolve().parents[1] / "logs" / "app.log"
+MIN_TEXT_LENGTH = 15
+SIMILARITY_THRESHOLD = 90
+
+
+class NormalizedItem(TypedDict):
+    """Canonical representation of a fetched mention."""
+
+    source: str
+    id: str
+    url: str
+    author: Optional[str]
+    timestamp: datetime
+    text: str
+    meta: Dict[str, object]
+
+
+class ServiceError(RuntimeError):
+    """Raised when a service hard fails."""
+
+
+class ServiceWarning(RuntimeError):
+    """Raised for recoverable issues that should surface to the UI."""
+
+
+def initialize_logger(name: str = "reputation_radar") -> logging.Logger:
+    """Configure and return a module-level logger."""
+    LOG_FILE.parent.mkdir(parents=True, exist_ok=True)
+    logging.basicConfig(
+        level=logging.INFO,
+        format="%(asctime)s | %(levelname)s | %(name)s | %(message)s",
+        handlers=[
+            logging.FileHandler(LOG_FILE, encoding="utf-8"),
+            logging.StreamHandler(),
+        ],
+    )
+    logger = logging.getLogger(name)
+    logger.setLevel(logging.INFO)
+    return logger
+
+
+def load_sample_items(name: str) -> List[NormalizedItem]:
+    """Load demo data from the samples directory."""
+    samples_dir = Path(__file__).resolve().parents[1] / "samples"
+    sample_path = samples_dir / f"{name}.json"
+    if not sample_path.exists():
+        return []
+    with sample_path.open("r", encoding="utf-8") as handle:
+        raw_items = json.load(handle)
+    cleaned: List[NormalizedItem] = []
+    for item in raw_items:
+        try:
+            cleaned.append(
+                NormalizedItem(
+                    source=item["source"],
+                    id=str(item["id"]),
+                    url=item.get("url", ""),
+                    author=item.get("author"),
+                    timestamp=datetime.fromisoformat(item["timestamp"]),
+                    text=item["text"],
+                    meta=item.get("meta", {}),
+                )
+            )
+        except (KeyError, ValueError):
+            continue
+    return cleaned
+
+
+def strip_html(value: str) -> str:
+    """Remove HTML tags and normalize whitespace."""
+    if not value:
+        return ""
+    soup = BeautifulSoup(value, "html.parser")
+    text = soup.get_text(separator=" ", strip=True)
+    text = re.sub(r"\s+", " ", text)
+    text = text.encode("utf-8", "ignore").decode("utf-8", "ignore")
+    return text.strip()
+
+
+def sanitize_text(value: str) -> str:
+    """Clean text and remove excessive noise."""
+    text = strip_html(value)
+    text = re.sub(r"http\S+", "", text)  # drop inline URLs
+    text = re.sub(r"\s{2,}", " ", text)
+    return text.strip()
+
+
+def drop_short_items(items: Iterable[NormalizedItem], minimum_length: int = MIN_TEXT_LENGTH) -> List[NormalizedItem]:
+    """Filter out items that are too short to analyze."""
+    return [
+        item
+        for item in items
+        if len(item["text"]) >= minimum_length
+    ]
+
+
+def fuzzy_deduplicate(items: Sequence[NormalizedItem], threshold: int = SIMILARITY_THRESHOLD) -> List[NormalizedItem]:
+    """Remove duplicates based on URL or fuzzy text similarity."""
+    seen_urls: set[str] = set()
+    deduped: List[NormalizedItem] = []
+    for item in items:
+        url = item.get("url") or ""
+        text = item.get("text") or ""
+        if url and url in seen_urls:
+            continue
+        duplicate_found = False
+        for existing in deduped:
+            if not text or not existing.get("text"):
+                continue
+            if fuzz.token_set_ratio(text, existing["text"]) >= threshold:
+                duplicate_found = True
+                break
+        if not duplicate_found:
+            deduped.append(item)
+            if url:
+                seen_urls.add(url)
+    return deduped
+
+
+def normalize_items(items: Sequence[NormalizedItem]) -> List[NormalizedItem]:
+    """Apply sanitization, deduplication, and drop noisy entries."""
+    sanitized: List[NormalizedItem] = []
+    for item in items:
+        cleaned_text = sanitize_text(item.get("text", ""))
+        if len(cleaned_text) < MIN_TEXT_LENGTH:
+            continue
+        sanitized.append(
+            NormalizedItem(
+                source=item["source"],
+                id=item["id"],
+                url=item.get("url", ""),
+                author=item.get("author"),
+                timestamp=item["timestamp"],
+                text=cleaned_text,
+                meta=item.get("meta", {}),
+            )
+        )
+    return fuzzy_deduplicate(sanitized)
+
+
+def parse_date_range(option: str) -> datetime:
+    """Return a UTC timestamp threshold for the given range identifier."""
+    now = datetime.now(timezone.utc)
+    option = option.lower()
+    delta = {
+        "24h": timedelta(days=1),
+        "7d": timedelta(days=7),
+        "30d": timedelta(days=30),
+    }.get(option, timedelta(days=7))
+    return now - delta
+
+
+def random_user_agent() -> str:
+    """Return a random user agent string for polite scraping."""
+    user_agents = [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
+        "(KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
+        "Mozilla/5.0 (Macintosh; Intel Mac OS X 13_3) AppleWebKit/605.1.15 "
+        "(KHTML, like Gecko) Version/16.4 Safari/605.1.15",
+        "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0",
+    ]
+    return random.choice(user_agents)
+
+
+def chunked(iterable: Sequence[str], size: int) -> Iterator[Sequence[str]]:
+    """Yield successive chunks from iterable."""
+    for start in range(0, len(iterable), size):
+        yield iterable[start : start + size]
+
+
+def validate_openai_key(api_key: Optional[str]) -> Tuple[Optional[str], List[str]]:
+    """Validate an OpenAI key following the guidance from day1 notebook."""
+    warnings: List[str] = []
+    if not api_key:
+        warnings.append("No OpenAI API key detected. VADER fallback will be used.")
+        return None, warnings
+    if not api_key.startswith("sk-"):
+        warnings.append(
+            "Provided OpenAI API key does not start with the expected prefix (sk-)."
+        )
+    if api_key.strip() != api_key:
+        warnings.append("OpenAI API key looks like it has leading or trailing whitespace.")
+        api_key = api_key.strip()
+    return api_key, warnings
+
+
+def ensure_timezone(ts: datetime) -> datetime:
+    """Guarantee timestamps are timezone-aware in UTC."""
+    if ts.tzinfo is None:
+        return ts.replace(tzinfo=timezone.utc)
+    return ts.astimezone(timezone.utc)
+
+
+def safe_int(value: Optional[object], default: int = 0) -> int:
+    """Convert a value to int with a fallback."""
+    try:
+        return int(value)  # type: ignore[arg-type]
+    except (TypeError, ValueError):
+        return default
diff --git a/community-contributions/Reputation_Radar/tests/conftest.py b/community-contributions/Reputation_Radar/tests/conftest.py
new file mode 100644
index 0000000..225b3d3
--- /dev/null
+++ b/community-contributions/Reputation_Radar/tests/conftest.py
@@ -0,0 +1,6 @@
+import pathlib
+import sys
+
+PROJECT_ROOT = pathlib.Path(__file__).resolve().parents[1]
+if str(PROJECT_ROOT) not in sys.path:
+    sys.path.insert(0, str(PROJECT_ROOT))
diff --git a/community-contributions/Reputation_Radar/tests/test_llm_fallback.py b/community-contributions/Reputation_Radar/tests/test_llm_fallback.py
new file mode 100644
index 0000000..1ddaee8
--- /dev/null
+++ b/community-contributions/Reputation_Radar/tests/test_llm_fallback.py
@@ -0,0 +1,19 @@
+import pytest
+
+from services import llm
+from services.utils import ServiceWarning
+
+
+def test_llm_fallback_uses_vader():
+    service = llm.LLMService(api_key=None)
+    results = service.classify_sentiment_batch(
+        ["I absolutely love this product!", "This is the worst experience ever."]
+    )
+    assert results[0].label == "positive"
+    assert results[1].label == "negative"
+
+
+def test_summary_requires_openai_key():
+    service = llm.LLMService(api_key=None)
+    with pytest.raises(ServiceWarning):
+        service.summarize_overall([{"label": "positive", "text": "Example"}])
diff --git a/community-contributions/Reputation_Radar/tests/test_utils.py b/community-contributions/Reputation_Radar/tests/test_utils.py
new file mode 100644
index 0000000..e8e81d6
--- /dev/null
+++ b/community-contributions/Reputation_Radar/tests/test_utils.py
@@ -0,0 +1,35 @@
+import datetime as dt
+
+from services import utils
+
+
+def test_normalize_items_deduplicates():
+    ts = dt.datetime(2025, 1, 1, tzinfo=dt.timezone.utc)
+    items = [
+        utils.NormalizedItem(
+            source="reddit",
+            id="1",
+            url="https://example.com/a",
+            author="alice",
+            timestamp=ts,
+            text="ReputationRadar is great!",
+            meta={},
+        ),
+        utils.NormalizedItem(
+            source="reddit",
+            id="2",
+            url="https://example.com/a",
+            author="bob",
+            timestamp=ts,
+            text="ReputationRadar is great!",
+            meta={},
+        ),
+    ]
+    cleaned = utils.normalize_items(items)
+    assert len(cleaned) == 1
+
+
+def test_sanitize_text_removes_html():
+    raw = "<p>Hello <strong>world</strong> &nbsp; <a href='https://example.com'>link</a></p>"
+    cleaned = utils.sanitize_text(raw)
+    assert cleaned == "Hello world link"