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. Video · How Founders Use AI The Sales Playbook For Founders | Startup School Y Combinator (Tom Blomfield) In 2 answers
  2. Video · How Founders Use AI ChatGPT and the Law Part 1: Lawyer shows how to use ChatGPT for Contracts Practicing lawyer (YouTube) In 2 answers
  3. Video · How Founders Use AI How to Use ChatGPT to Review Contracts! Legal tech creator (YouTube Shorts) In 2 answers
  4. Video · How Founders Use AI Working Like a Lawyer with Claude Anthropic (Mark Pike with Freshfields' Anna Gressel) In 2 answers
  5. Video · How Founders Use AI How to Use Claude to Build INSANE Financial Models (2026) Nicolas Boucher (AI Finance Club) In 2 answers
  6. Video · How Founders Use AI Master Claude for Excel in 10 Minutes: Financial Modeling Ali H. Salem In 2 answers
  7. Video · How Founders Use AI AI as Your New Strategic Thought Partner, Jeremy Utley (Stanford) Jeremy Utley on Proof of Work: Applied AI Case Studies In 2 answers
  8. Video · How Founders Use AI "Dumbest idea I've heard" to $100M ARR: Inside the rise of Gamma | Grant Lee Lenny's Podcast In 2 answers
  9. Video · How Founders Use AI Gemini vs. ChatGPT vs. Claude vs. Grok vs. Perplexity! (The Best Way To Use Each One) Paul J Lipsky In 2 answers
  10. Video · How Founders Use AI ChatGPT vs Claude vs Gemini: Which AI Is Worth $20 in 2026? Great Learning In 2 answers
  11. Video · How Founders Use AI ChatGPT vs Claude vs Gemini: Which $20 AI Plan Is Worth It? Parker Prompts In 2 answers
  12. Video · How Founders Use AI AI4Bharat at IIT Madras and Josh Talks AI Launches India's First Independent AI Evaluation Platform AIM Network In 2 answers
  13. Video · About 55 minutes · Starting Up The Lean Startup | Eric Ries | Talks at Google Eric Ries
  14. Video · About 50 minutes · Starting Up Julie Zhuo: How a Facebook Designer Thinks Julie Zhuo
  15. Video · ~45 min · Starting Up Obviously Awesome: April Dunford's Positioning Do-Over April Dunford
  16. Video · About 40 minutes · Starting Up Challenges and learnings of building for the next billion users (Google I/O '18) Google (Next Billion Users team: Nithya Sambasivan, Josh Woodward and colleagues)
  17. Alexandra Watkins wrote the book on naming, and here she explains in plain terms why a name that people have to stop and spell... Ebaqdesign / On Branding Podcast Video · ~50 min interview · Starting Up How To Create Brand Names with Alexandra Watkins (On Branding Podcast) Arek Dvornechuck (host), Alexandra Watkins (guest)
  18. Video · video · Starting Up How to name your startup: David Placek, named Vercel, Azure and BlackBerry Scaling DevTools
  19. Video · short explainer · Starting Up How to Choose the Right Domain Name for SEO (And Avoid Big Mistakes) YouTube
  20. Video · 76 minutes · Starting Up Learn Copywriting in 76 Minutes Harry Dry
  21. Video · about 43 minutes · Starting Up Responsive design made easy Kevin Powell
  22. Video · Short YouTube comparison · Starting Up Which Platform Wins? Framer vs Webflow Full Comparison YouTube
  23. Video · Starting Up Designing for the Next Billion (Droidcon NYC 2016) Raveesh Bhalla
  24. Most branding advice is one designer's taste, this is the opposite: a short, research-backed walkthrough from Nielsen Norman... Nielsen Norman Group Video · About 3 minutes · Starting Up Trustworthiness in Web Design: 4 Credibility Factors (Video) Aurora Harley

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