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. The biggest public dataset showing how heavily ChatGPT leans on Reddit and Wikipedia as evidence. semrush.com Article · How Founders Use AI Semrush Releases Expanded 2026 AI Visibility Index (126M prompts) Semrush
  2. Distills G2's answer-economy research into concrete moves for SaaS founders. foundationinc.co Article · How Founders Use AI How AI Search Is Rewiring B2B Software Buying (G2 Report analysis) Foundation Marketing
  3. Review-site citations are the number one trust signal in AI answers, straight from the data. prnewswire.com Article · How Founders Use AI New G2 Research: Half of B2B Software Buyers Now Start With AI Chatbots G2
  4. PR-industry data showing earned media feeds 99% of brand-related AI queries. muckrack.com Article · How Founders Use AI How earned media shapes what AI says about your brand Muck Rack
  5. Shows why a handful of trusted outlets drive most AI visibility, so PR effort can be concentrated. meltwater.com Article · How Founders Use AI How Digital PR Affects AI Visibility and Search Outcomes Meltwater
  6. Explains why unlinked brand mentions still shape LLM answers, upending link-first PR thinking. wearebottle.com Article · How Founders Use AI How Digital PR is Redefining Brand Visibility: What Influences LLMs Bottle
  7. Actual citation counts across Claude, Gemini, and GPT quantifying Wikipedia's outsized pull. weglot.com Article · How Founders Use AI Do LLMs Prefer Wikipedia? We Analyzed 6,844 Citations Weglot
  8. YouTube is the most-cited domain in Google's AI Overviews; this lesson shows how to exploit that. ahrefs.com Course · How Founders Use AI YouTube SEO for AI Search (Ahrefs AEO Course 3.3) Ahrefs
  9. A creator-founder's tactical guide to making video content AI assistants surface. gillianperkins.com Article · How Founders Use AI How To Get Your Videos Recommended By ChatGPT (And Other AI Tools) Gillian Perkins
  10. Maps which third-party surfaces (UGC, reviews, listicles) feed ChatGPT's product picks. alphametic.com Article · How Founders Use AI SEO Guide to ChatGPT's Search Shopping and AI Product Recommendations Alphametic
  11. The PR profession's own evidence review on consistency of mentions beating one-off placements. influenceonline.co.uk Article · How Founders Use AI From visibility to recommendations: how earned media is powering AI search Influence (CIPR)
  12. Reverse-engineers competitor citations so you can close the third-party gap deliberately. theaisearchdirectory.com Article · How Founders Use AI Why the AI Cited Your Competitor (And What They Did to Earn It) The AI Search Directory
  13. Directly answers the question with citation-share data for commercial prompts. subscribepr.com Article · How Founders Use AI How to win 'best X' AI queries with comparison content Subscribe PR
  14. Seven concrete formatting rules (ranked lists, answer-first intros) drawn from what actually gets cited. getmasset.com Article · How Founders Use AI AI Search Sends Most of Its Traffic to Listicles: 7 Rules for Writing One It Will Cite Masset
  15. Shows why fresh, structured list posts earn disproportionate Bing-powered AI citations. cmoeugene.com Article · How Founders Use AI Do 'Best' Lists Boost ChatGPT Visibility? CMO Eugene
  16. Client-portfolio data on format performance, including where comparisons beat blogs. ritnerdigital.com Article · How Founders Use AI The Content Formats AI Search Actually Cites (2026 Data) Ritner Digital
  17. Grounds the listicle tactic inside a full AEO strategy so you do not over-rotate on one format. ahrefs.com Article · How Founders Use AI Answer Engine Optimization: How to Win in AI-Powered Search Ahrefs
  18. A conversion-focused guide to answerability: clarity, authority, and question clusters. cxl.com Guide · How Founders Use AI Answer Engine Optimization (AEO): The comprehensive guide CXL
  19. Includes the buyer data (42% of CRM buyers use AI search) that justifies the content investment. hubspot.com Guide · How Founders Use AI Show Up in AI Search with Answer Engine Optimization HubSpot
  20. A solid, current baseline on making content citable rather than merely rankable. semrush.com Article · How Founders Use AI What Is Answer Engine Optimization? And How to Do It Semrush
  21. Sets honest expectations: first mentions in weeks, stable citations over 2-3 months. airops.com Article · How Founders Use AI How Long Does It Take to See Results From AEO? AirOps
  22. Startup-scoped version of the playbook, including what to skip at seed stage. foundersnetwork.com Guide · How Founders Use AI AEO for Startups: Answer Engine Optimization Guide Founders Network
  23. An accelerator's framing of AEO content bets for pre-seed and seed founders. maccelerator.la Article · How Founders Use AI Answer Engine Optimization for Startups: Adapting to AI-Powered Search M Accelerator
  24. A free 44-minute structured session on question clusters and content formats. classcentral.com Course · How Founders Use AI Answer Engine Optimization (AEO) Is the New SEO (free video) Graphite / Ethan Smith (via Class Central)

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1327 questions GTM Go-to-market, from breaking in to how the best teams do it. 379 questions D2C Building a direct-to-consumer brand, India-first. 512 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 165 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 360 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 425 terms
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