← all library
ResearchRunner-up

NotebookLM

Google's free notebook for AI-powered research on your own documents.

Visit website →
Free tierFrom Free

What it does

Upload up to 50 sources per notebook (PDFs, URLs, docs). Ask questions grounded in only those sources. Generates surprisingly good audio summaries.

When to use it

For deep reading on a specific topic: industry reports, competitor docs, academic papers. Use it for your own research, not sensitive client material (Google may train on free tier).

Bogdan's take

The audio summaries are the sleeper feature. I upload a competitor's entire website as sources and listen to the summary on a walk. It's how I get up to speed fast on a new space.

Not sure if this tool fits your business?

Two weeks -- I audit your processes, find the 3 highest-impact opportunities, and help you ship the first pipeline.

Book assessment