Explore · The library

Every resource founders actually use, in one library.

The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.

What founders use most, ranked by how many answers lean on it.

  1. Survey data on how teams actually use AI in synthesis and the time it saves. lyssna.com Article · How Founders Use AI Research Synthesis Report 2025: AI, Methods & Time Investment Lyssna
  2. An honest map of what AI moderation matches humans on and what it cannot do. getperspective.ai Article · How Founders Use AI AI-Moderated Interviews: How They Work, When to Use Them, and What They Replace Perspective AI
  3. The research frontier on simulating customers, and why to stay skeptical of it. arxiv.org Article · How Founders Use AI Synthetic Founders: AI-Generated Social Simulations for Startup Validation Research arXiv (academic)
  4. A documented 6-weeks-to-8-days discovery compression, step by step. aakashgupta.medium.com Article · How Founders Use AI AI Just Made Product Discovery 10x Faster (Here's the Exact Process) Aakash Gupta
  5. Includes conversational data querying and research patterns from the best PMs. lennysnewsletter.com Article · How Founders Use AI How top PMs increase their leverage with AI Lenny's Newsletter
  6. Torres's actual day-to-day setup for automating research legwork. lennysnewsletter.com Article · How Founders Use AI How I AI: Teresa Torres uses Claude Code as her research and writing system Lenny's Newsletter (How I AI)
  7. a16z on the shift from ranking to being referenced in AI answers, and what that means for content and measurement. a16z.com Article · How Founders Use AI How Generative Engine Optimization (GEO) rewrites the rules of search a16z
  8. Google's own positioning of NotebookLM as a grounded research partner. blog.google Article · How Founders Use AI Do your best research with NotebookLM Google
  9. The update that lets NotebookLM gather web sources for you, not just read uploads. blog.google Article · How Founders Use AI NotebookLM adds Deep Research and support for more source types Google
  10. The best mainstream end-to-end guide to what it does and how to start. fastcompany.com Guide · How Founders Use AI The complete guide to NotebookLM Fast Company
  11. A productivity YouTuber's written playbook with real workplace use cases. jeffsu.org Guide · How Founders Use AI NotebookLM: A Comprehensive Guide Jeff Su
  12. Cuts through a year of feature launches to what is actually useful. jeffsu.org Article · How Founders Use AI NotebookLM in 2026: What Changed and What Matters Jeff Su
  13. The launch thread from NotebookLM's editorial director, with a live example. x.com Thread · How Founders Use AI Rolling out audio overviews at NotebookLM Steven Johnson
  14. A rigorous independent tester's verdict on audio overviews. simonwillison.net Article · How Founders Use AI NotebookLM's automatically generated podcasts are surprisingly effective Simon Willison
  15. Advanced workflows chaining NotebookLM with deep research outputs. medium.com Article · How Founders Use AI How To Use NotebookLM Better Than 99% Of People (Deep Research Workflow Guide) Daniel Ferrera
  16. Understanding how the podcast voice is engineered helps you steer it. nicolehennig.com Article · How Founders Use AI NotebookLM: reverse engineering the system prompt for audio overviews Nicole Hennig
  17. Keeps you current: structured data tables from your sources is a big founder unlock. 9to5google.com Article · How Founders Use AI NotebookLM now uses Gemini 3, adds new Data Tables output 9to5Google
  18. Practical notebook-organization patterns that keep answers sharp. medium.com Guide · How Founders Use AI NotebookLM 2025: The Only Practical Guide You Need Write A Catalyst (Medium)
  19. The launch of the research-first agentic browser. perplexity.ai Article · How Founders Use AI Introducing Comet: Browse at the speed of thought Perplexity
  20. A detailed early hands-on with real tasks, not marketing claims. testingcatalog.com Article · How Founders Use AI Exclusive review: Comet Agentic browser by Perplexity TestingCatalog
  21. Explains the mechanics and the security surface of both browsers. humansecurity.com Article · How Founders Use AI ChatGPT Atlas vs Perplexity Comet: How Agentic Browsers Work HUMAN Security
  22. A sober enterprise take on what agentic browsing changes. ibm.com Article · How Founders Use AI Comet: Perplexity's AI browser gets personal IBM Think
  23. A later review once the novelty wore off; what stuck and what did not. secondtalent.com Article · How Founders Use AI Perplexity Comet Review: When the Browser Starts to Think Second Talent
  24. Research agents now output decks, dashboards and spreadsheets, not just reports. perplexity.ai Article · How Founders Use AI Deep Research, now in Computer Perplexity

Show the next 24

The hubs

eChai Partner Brands The partnership →