Gemini Notebook

Google's research tool, known as NotebookLM until July 2026 - same product, new name, and your old notebooks and links still work. Feed it research papers, PDFs, Google Docs, websites or YouTube links and it becomes an expert on exactly that material and nothing else. Every answer points to the passage it came from, so you can check it instead of just trusting it. Audio Overviews are still the party trick: two AI hosts discuss your documents like a real podcast. On top of that there are video overviews, mind maps, flashcards, quizzes and reports, and paid plans are getting code execution to analyse the data in your sources. Free to start, and a Google AI Pro or Ultra plan raises the limits. Ridiculously useful for students, researchers and anyone who has to understand a pile of documents without reading every page.