Google Rolls Out NotebookLM’s AI-Powered 'Discover Sources' Feature

The new tool leverages Gemini AI to curate and summarize web sources for users, enhancing research workflows and minimizing inaccuracies.

The 'Discover Sources' feature, launched on April 2, 2025, allows users to describe a topic and receive up to 10 curated web sources with annotated summaries.
Powered by Google's Gemini AI, the tool scans and analyzes hundreds of web sources to identify the most relevant materials for users' projects.
Users can integrate imported sources with NotebookLM tools like Briefing Docs, FAQs, and Audio Overviews to streamline research and content creation.
The feature includes an 'I'm Feeling Curious' button, which generates sources on random topics to help users explore the tool's capabilities.
The rollout of 'Discover Sources' is expected to be completed within a week, marking the latest step in Google's expansion of AI-driven features in NotebookLM.