Google has expanded access to NotebookLM's business version, now called NotebookLM Plus, targeting enterprises, teams, and individuals.The updated Audio Overview feature allows users to interact with AI hosts and ask questions out loud.NotebookLM Plus offers five times more Audio Overviews, notebooks, and sources per notebook, along with customization options and usage analytics.The redesigned NotebookLM introduces three panels for managing content, accessing data sources, and creating study guides and Audio Overviews.