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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. Catch wrong answers early with a monitoring cadence instead of finding out from a customer. riffanalytics.ai Article · How Founders Use AI AI Brand Monitoring: The Playbook for Proactive Reputation Tracking Riff Analytics
  2. Founder-specific: what to do in the first 48 hours after finding a damaging AI claim. belkinmarketing.com Article · How Founders Use AI AI Predictive Reputation Management: A Founder's Crisis Playbook Belkin Marketing
  3. A PR firm audits itself and publishes the correction playbook it derived, receipts included. bospar.com Article · How Founders Use AI Our Own AI Audit Defines the Playbook for AI Brand Visibility Bospar PR
  4. The founder's own launch thread explains exactly how AI assembles winning ads from your clip library. x.com Thread · How Founders Use AI Excited to introduce Icon, The First AI Admaker Kennan Davison
  5. Shows where agentic ad creation is heading, from concepting to scaled A/B testing, from the investors backing it. kindredventures.com Article · How Founders Use AI Creatify: AI agents for generating video ads at scale (Series A announcement) Kindred Ventures
  6. A trusted Meta ads operator separates the AI creative tactics that work from the hype. foxwelldigital.com Guide · How Founders Use AI AI and Creative for Meta Ads in 2025: A Definitive Guide Andrew Foxwell (Foxwell Digital)
  7. A practical small-budget testing setup for AI-generated ads from a top performance creative. x.com Thread · How Founders Use AI Dara Denney on testing AI ads across different budgets Dara Denney
  8. A creative agency actually tested the generator tools, so you skip the trial-and-error. superside.com Article · How Founders Use AI 10 Best AI Ad Creative Generators & Tools (Tested) Superside
  9. Sensible framing of where AI belongs in each stage of the creative process. goprimer.com Article · How Founders Use AI Make Ads That Convert: AI in the Creative Process Primer
  10. First-party training on marketing use cases straight from the people building the model. openai.com Course · How Founders Use AI ChatGPT for marketing teams (OpenAI Academy) OpenAI
  11. Concrete prompt patterns for audience insights, messaging tests, and campaign angles. academy.openai.com Guide · How Founders Use AI ChatGPT for marketing: use cases OpenAI Academy
  12. A measurement company's sober take on where genAI genuinely moves performance numbers. funnel.io Article · How Founders Use AI How generative AI is transforming performance marketing Funnel
  13. Copy-paste persona prompts from a long-running independent ecommerce publication. practicalecommerce.com Article · How Founders Use AI ChatGPT Prompts for Customer Personas Practical Ecommerce
  14. A user-research tool's honest take on where AI personas help and where they mislead. looppanel.com Guide · How Founders Use AI How to Create a ChatGPT Persona in 2025 Looppanel
  15. Practical audience-intelligence and targeting-strategy prompts for early-stage marketers. m1-project.com Guide · How Founders Use AI How to Use ChatGPT for Marketing M1-Project
  16. Ad-specific prompts from a tool used daily by performance creative teams. foreplay.co Guide · How Founders Use AI How to Use ChatGPT for Facebook Ads: 10 Useful Prompts Foreplay
  17. Performance-tested prompts tied to metrics, not just clever copy. pixis.ai Article · How Founders Use AI 18 ChatGPT Prompts for Ad Creative and Copywriting That Improve Performance Pixis
  18. Structured variant-generation templates built around PAS, BAB, and AIDA frameworks. get-ryze.ai Guide · How Founders Use AI ChatGPT Prompts for Facebook Ads: 15 Copy Templates That Work Ryze AI
  19. Mainstream verification of the most cited small-team, big-spend AI app story. cnbc.com Article · How Founders Use AI 18-year-old CEO's calorie app Cal AI makes $1.4 million a month CNBC
  20. The full arc from teen side project to exit, including the paid growth engine. inc.com Article · How Founders Use AI He Built an AI App in High School, Made $40 Million, and Sold to MyFitnessPal Inc. (Ben Sherry)
  21. Breaks the growth playbook into replicable steps: creator network, paid, and retention. superframeworks.com Article · How Founders Use AI Cal AI Case Study: $0 to $50M+ ARR in 18 Months Superframeworks
  22. Dissects the 250-creator native-content engine behind Cal AI's paid TikTok machine. stormy.ai Article · How Founders Use AI The Cal AI TikTok Marketing Playbook: Scaling to $2M/Month Stormy AI
  23. Focuses on the AI tooling side of the same story for builders on a budget. metaschool.so Article · How Founders Use AI How 17-Year-Old Zach Used ChatGPT to Build Cal AI to $1M/mo Metaschool
  24. A solo operator's real numbers: 12 retainers on an under-$500/month AI stack. medium.com Article · How Founders Use AI One-Person Agency, 10x Output: How Solo Marketers Use AI to Scale Unkoa Marketing

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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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