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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. A simple calculator-style method for founders setting their first test budget. flighted.co Article · How Founders Use AI How to Calculate Your Meta Ads Creative Testing Budget Flighted
  2. A full testing framework covering structure, budgets, and decision rules. topgrowthmarketing.com Guide · How Founders Use AI Meta Ads Creative Testing Framework for DTC Brands Top Growth Marketing
  3. Tactics for raising testing velocity without blowing up your CPA. adgpt.com Article · How Founders Use AI Meta Ads Creative: How to Test More and Find Winners Fast AdGPT
  4. A concrete recovery story when testing structure broke under the new engine. 1clickreport.com Article · How Founders Use AI Meta Andromeda Update: 5 Settings That Recovered Our ROAS in 14 Days 1ClickReport
  5. Why 10-20 genuinely distinct concepts became the testing baseline. adscale.com Article · How Founders Use AI Meta Andromeda Update: New Creative Strategy for Facebook and Instagram Ads AdScale
  6. Explains why duplicating a winner with tiny edits no longer counts as testing. madwise-agency.com Article · How Founders Use AI Creative Diversity: The Fuel Behind Andromeda Madwise
  7. Peer-reviewed research on the 39%-negative sentiment, with practical mitigations. forbes.com Article · How Founders Use AI AI Ads Trigger Backlash: What Research Says Leaders Can Do Forbes (Melissa Wheeler)
  8. The cautionary case files: what specifically went wrong in each pulled campaign. news.designrush.com Article · How Founders Use AI 7 Worst AI Advertising Backfires of 2025 DesignRush News
  9. Names the underlying dynamic: authenticity is becoming the scarce, priced asset. koinsights.com Article · How Founders Use AI The Authenticity Premium: Why Consumers Are Rejecting AI-Generated Content Kate O'Neill (KO Insights)
  10. Early warning on positioning your whole brand around AI-made everything. breef.com Article · How Founders Use AI The AI Marketing Backlash: Why 'AI-First' Brands Are Starting to Fall Flat Breef
  11. A textbook-publisher summary of the evidence, useful for sharing with your team. mheducation.com Article · How Founders Use AI AI Slop Backfires in Ads McGraw Hill
  12. Pairs each misstep with a brand that used AI well, so you learn the difference. admindagency.com Article · How Founders Use AI Avoiding AI Failures: Lessons from 2025's Biggest Brand Missteps and Wins Admind
  13. Relatability beats polish; the antidote to both over-produced and AI-generic creative. hottgrowth.com Article · How Founders Use AI Ugly Ads Don't Mean Bad Ads: Expert Tips for High-Intent Ads Barry Hott
  14. The written version of the ugly-ads argument with concrete evaluation tips. practicalecommerce.com Article · How Founders Use AI Ugly Ads Perform Best, Marketer Says Practical Ecommerce
  15. An operator community's distillation of the ugly-ads playbook. news.workspace6.io Article · How Founders Use AI Meta Ads Creative Hack: Ugly Ads w/ Barry Hott Workspace6
  16. Frames the backlash as a skills lesson: judgment and taste are the moat. girlswithimpact.org Article · How Founders Use AI The AI Marketing Backlash Is Here Girls With Impact
  17. Proven human-first formats to emulate instead of defaulting to AI slop. foreplay.co Article · How Founders Use AI Savannah Sanchez ad formats worth copying Foreplay (feat. Savannah Sanchez)
  18. A respected growth agency's tested shortlist for AI-assisted conversion work. nogood.io Article · How Founders Use AI 10 Best AI Tools for CRO NoGood
  19. An honest test of whether AI page critiques actually find conversion problems. crazyegg.com Article · How Founders Use AI AI Landing Page Analyzers: Golden CRO Opportunity or Waste of Time? Crazy Egg
  20. The most rigorous CRO publication on where predictive AI genuinely helps. cxl.com Article · How Founders Use AI How to Improve Your CRO with Predictive AI CXL
  21. Covers dynamic headlines and CTA personalization for paid traffic. swipepages.com Article · How Founders Use AI AI Landing Page Optimization: How to Boost Conversions Swipe Pages
  22. Wide tool coverage for going from campaign brief to launch-ready page. landingi.com Article · How Founders Use AI 21 Best AI Tools for Fast Landing Page Creation Landingi
  23. Compares natural-language page generation across the current builder generation. emergent.sh Article · How Founders Use AI Best AI Landing Page Builders: 5 Tools Teams Are Using Today Emergent
  24. From the most popular AI app builder founders already use for MVPs. lovable.dev Guide · How Founders Use AI Best Landing Page Builders for 2025 Lovable

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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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