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 largest cold email dataset ever analyzed, showing what top 10% senders do differently. gong.io Guide · How Founders Use AI How to Master Cold Email (based on 85 million emails) Gong
  2. The raw data report: 85M+ emails distilled into rules you can apply to tomorrow's send. tactics.30mpc.com Guide · How Founders Use AI The Ultimate Cold Email Data Report (30MPC x Gong) 30 Minutes to President's Club + Gong
  3. Straightforward, tool-agnostic guide on where AI helps in cold email and where humans must stay. hunter.io Guide · How Founders Use AI How To Use AI For Cold Email (Guide) Hunter.io
  4. The whole founder-led sales framework compressed into one scannable thread. x.com Thread · How Founders Use AI Lenny's thread: the ultimate guide to 0-to-1 sales Lenny Rachitsky
  5. Shows what comes after founder-led sales, so you know when and how to hand the motion off. cloud.substack.com Article · How Founders Use AI How to Build Your First SDR Team, With Sam Blond (ex-CRO of Brex) Sam Blond / Bessemer Cloud
  6. A startup-banking team explains AI-assisted ICP work with the crucial caveats about validation. mercury.com Article · How Founders Use AI How AI can help startups define their ICP Mercury
  7. Argues an ICP must be built backward from closed-won data, the discipline most founders skip. clay.com Guide · How Founders Use AI The Complete Guide to Ideal Customer Profiles (ICP) Clay
  8. Turns fit and intent into a score so you contact the best 20% of your list first. clay.com Guide · How Founders Use AI Lead Scoring in Clay: Step-by-Step Guide Clay
  9. A vendor-neutral-enough walkthrough of the ICP-to-list pipeline inside Clay. smartlead.ai Guide · How Founders Use AI Build Lead Lists With Clay: Step-by-Step Tutorial Smartlead
  10. The official lesson on sourcing the humans, not just the companies, that match your ICP. university.clay.com Course · How Founders Use AI Finding People in Clay (Clay University lesson) Clay
  11. A Chennai-built sales platform's honest survey of the AI prospecting tool landscape. klenty.com Article · How Founders Use AI Future of Sales: 12 Must-Have AI Prospecting Tools Klenty
  12. Turns 30 minutes of manual account research into a two-minute AI briefing, with prompts. skaled.com Guide · How Founders Use AI How to Use ChatGPT for Prospect Research Skaled Consulting
  13. YC's grounding reminder that a narrow ICP beats a big TAM when you are selling yourself. ycombinator.com Article · How Founders Use AI Sales Advice for Technical Founders Y Combinator
  14. A sober cost-benefit analysis from a vendor with no AI SDR to sell you. usergems.com Article · How Founders Use AI Are AI SDRs really worth it? UserGems
  15. The delicious irony that tells you everything about autonomous SDR limits today. techcrunch.com Article · How Founders Use AI Artisan raises $25M and is still hiring humans TechCrunch
  16. A thoughtful post-hype take on what agentic pipeline generation should actually look like. commonroom.io Article · How Founders Use AI The AI SDR is dead, long live the AI SDR Common Room
  17. The systemic context: why AI sales-tool traction numbers deserve extra scrutiny. techcrunch.com Article · How Founders Use AI How VCs and founders use inflated 'ARR' to crown AI startups TechCrunch
  18. A structured evaluation checklist if you do decide to trial one. autobound.ai Guide · How Founders Use AI The AI SDR Buying Guide Autobound
  19. The full landscape of signals and how to operationalize them without an ops team. usergems.com Guide · How Founders Use AI Signal-based marketing and sales: everything you need to know UserGems
  20. A clean taxonomy of fit, intent, and timing signals with pipeline examples. usergems.com Guide · How Founders Use AI B2B buying signals: key types and how to use them UserGems
  21. Deep dive on the single highest-converting trigger, the new executive in seat. usergems.com Guide · How Founders Use AI How to turn new hire buying signals into pipeline UserGems
  22. Shows how signals stack with account fit so you work a short list, not a spray list. usergems.com Guide · How Founders Use AI The modern guide to account-based prospecting UserGems
  23. A second vendor's framework, useful for triangulating what is real versus marketing. amplemarket.com Guide · How Founders Use AI What is signal-based selling? The complete guide Amplemarket
  24. A ready-made playbook wiring signals to automated, personalized first touches. commonroom.io Guide · How Founders Use AI Put signal-based prospecting on autopilot (playbook) Common Room

Show the next 24

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
eChai Partner Brands The partnership →