Most of Google’s AI efforts thus far have involved adding generative features to existing products, but NotebookLM is different. Created by the Google Labs team, NotebookLM uses AI to analyze user-provided documents. Starting today, it will be even easier to use NotebookLM to explore topics, as Google has added a “Discover Sources” feature to let the app look up its own sources. Previously, to create a new notebook, you had to feed the AI documents, web li