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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. Names the 8 components of a research prompt including guardrails and anti-hallucination clauses. findskill.ai Guide · How Founders Use AI Deep Research Prompt Framework FindSkill.ai
  2. A copy-paste template that turns a fuzzy founder question into an analyst brief. armenberenson.com Guide · How Founders Use AI Deep Research Prompt Template Armen Berenson
  3. The meta-prompting trick: have the model interview you before it researches. linkedin.com Article · How Founders Use AI ChatGPT Deep Research: Prompts inside prompts Seth Wylie
  4. Worked examples of weak vs strong research prompts with the outputs compared. medium.com Article · How Founders Use AI Unlock ChatGPT's Research Superpowers: Guide to Deep Research Prompts Ali Azimi Darmian
  5. OpenAI's own training material on briefing the research agent properly. academy.openai.com Course · How Founders Use AI Deep research (OpenAI Academy resource) OpenAI Academy
  6. An educator's battle-tested prompt patterns for rigorous, citable research output. teachingnaked.com Guide · How Founders Use AI Deep Research Prompts José Bowen (Teaching Naked)
  7. Shows how a standing system prompt about you and your company upgrades every future research answer. lennysnewsletter.com Article · How Founders Use AI Build your personal AI copilot Tal Raviv, Lenny's Newsletter
  8. A gentle training plan that builds daily prompting muscle instead of one-off hacks. lennysnewsletter.com Article · How Founders Use AI Your Couch-to-5K for AI Hilary Gridley, Lenny's Newsletter
  9. The key instruction: build TAM/SAM/SOM bottom-up from buyer constraints, not analyst headlines. saas-hackers.com Guide · How Founders Use AI How do you use ChatGPT Deep Research for market sizing? SaaS Hackers
  10. A forensic case study of how AI overshot a market by $33B, and how to catch it. strategex.com Article · How Founders Use AI When AI Gets Market Sizing Wrong: A $33 Billion Reality Check Strategex
  11. Tests both agents on actual business-plan research so you see the output quality gap. liveplan.com Article · How Founders Use AI I Tried ChatGPT and Google Gemini's Deep Research (for business planning) LivePlan
  12. A professional B2B market researcher grades AI reports against industry standards. cascadeinsights.com Article · How Founders Use AI A Market Researcher's Review: Deep Research with ChatGPT vs. Gemini Cascade Insights
  13. Five sharp prompts that stress-test demand before you build anything. forbes.com Article · How Founders Use AI 5 ChatGPT Prompts To Check If Your Business Idea Is Worth Millions Jodie Cook, Forbes
  14. A builder's literal prompt stack for demand, competition and willingness-to-pay checks. medium.com Article · How Founders Use AI The Exact Prompts I Use to Validate New Business Ideas Talha Malik
  15. A structured course if you want the full idea-to-validation system in one place. udemy.com Course · How Founders Use AI Discover, Validate & Launch New Business Ideas with ChatGPT Udemy
  16. Librarian-curated prompts plus the real databases to verify AI numbers against. businesslibrary.uflib.ufl.edu Guide · How Founders Use AI AI Prompts for Market Analysis (research library guide) University of Florida Business Library
  17. A top PM voice's framework so your AI research lands in a structure that drives decisions. aakashg.com Guide · How Founders Use AI Competitive Analysis Framework Template Aakash Gupta
  18. Includes exactly how top operators use Perplexity and ChatGPT for competitor teardowns. news.aakashg.com Article · How Founders Use AI The AI PM's Playbook Aakash Gupta
  19. A clean primer with prompts for products, pricing, reviews and a comparison matrix. coursera.org Guide · How Founders Use AI How to Use ChatGPT for Competitor Analysis: Use Cases and Prompting Coursera
  20. A short course dedicated to the deep-research-for-CI workflow. aibusinessnetwork.ai Course · How Founders Use AI Use ChatGPT for Competitive Analysis: Deep Research Workflows That Save Hours AI Business Network
  21. Copy-ready deep research prompts tuned for competitor teardowns. medium.com Article · How Founders Use AI Competitor Analysis Deep Research Prompts for Documentation Balu Kosuri
  22. Covers the monitoring layer: watching pricing pages, job posts and launches automatically. unkover.com Guide · How Founders Use AI AI Competitive Intelligence: How to Use AI for CI Unkover
  23. Focused on mining competitors' social presence and share of voice with AI. sociality.io Guide · How Founders Use AI Competitive analysis with ChatGPT (AI in social media strategy) Sociality.io
  24. A founder-specific mega-prompt that outputs a complete CI document. aiforwork.co Guide · How Founders Use AI Create A Competitor Analysis Document with ChatGPT (prompt included) AI for Work

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1046 questions GTM Go-to-market, from breaking in to how the best teams do it. 352 questions D2C Building a direct-to-consumer brand, India-first. 482 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 154 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 278 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 390 terms
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