To date, NotebookLM works by having you manually add files and links, with Google now introducing a “Discover sources” button that searches the web for you. In the Sources pane, there will be a new “Discover” button (right next to “Add”) that features a magnifying glass and sparkle. Tapping brings up a “What are you interested in?” box to “Describe something you’d like to learn about.” Afterwards, “NotebookLM will bring back a curated collection of relevant sources from the web.” Up to 10 link r...