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. A bootstrapped company's own cold email playbook, receipts included. startupspells.com Article · How Founders Use AI The Cold Email Playbook Smartlead used to hit $20M ARR Startup Spells
  2. Wide-angle tool map so you know what each category of software is actually for. klenty.com Article · How Founders Use AI 22 Outbound Sales Software To Book More Meetings Klenty
  3. A bootstrapper-funder's collection of playbooks that built real pipelines. founderpath.com Guide · How Founders Use AI Cold Outreach Strategy: 26 Proven Playbooks Founderpath
  4. A practitioner's full playbook with email-by-email structure and math on meeting rates. jonathanrintala.com Guide · How Founders Use AI The B2B SaaS Cold Email Playbook Jonathan Rintala
  5. LinkedIn's official view of its AI features, the safest automation you can use on the platform. business.linkedin.com Guide · How Founders Use AI AI for Sales: How AI is Changing the Sales Process LinkedIn
  6. Explains the SSI score that quietly shapes how far your outreach and content travel. business.linkedin.com Guide · How Founders Use AI From Social Selling Index (SSI) to AI LinkedIn
  7. The primary-source doc on Account IQ, Lead IQ, and Message Assist capabilities. linkedin.com Guide · How Founders Use AI Generative AI in Sales Navigator (help doc) LinkedIn
  8. Track new AI features as they ship instead of paying a bot vendor to replicate them. linkedin.com Article · How Founders Use AI Sales Navigator product updates blog LinkedIn
  9. Shows LinkedIn's push into warm AI-assisted intros, the future of the platform's selling motion. linkedin.com Article · How Founders Use AI Powering LinkedIn.com with Sales Navigator insights and AI-assisted introductions LinkedIn
  10. The mechanics of blending LinkedIn touches into an email sequence safely. help.lemlist.com Guide · How Founders Use AI How to add LinkedIn steps to your sequence lemlist
  11. A coached sequence template with sensible spacing between hard touches. help.lemlist.com Guide · How Founders Use AI lemcoach: How to build a multichannel outreach sequence (email + LinkedIn) lemlist
  12. The daily-limit and warmup rules that keep accounts alive, from a vendor with skin in the game. heyreach.io Guide · How Founders Use AI 8 rules for safe and scalable LinkedIn connection automation HeyReach
  13. What safe automated messaging actually looks like at the workflow level. heyreach.io Guide · How Founders Use AI The definitive guide to automated LinkedIn messaging HeyReach
  14. The cautionary tale: LinkedIn now takes down automation vendors themselves. joinvalley.co Article · How Founders Use AI LinkedIn Automation Safety 2026: What HeyReach's Ban Means for Your Account Valley
  15. A balanced read on real ban risk versus scare marketing. wonda.sh Article · How Founders Use AI Is LinkedIn Automation Safe? The HeyReach Ban, Explained Wonda
  16. Covers profile optimization, the step founders skip that doubles connection acceptance. cleverly.co Guide · How Founders Use AI The Ultimate Guide to LinkedIn Prospecting Cleverly
  17. The same warm-then-DM logic applied to X, a underrated channel for developer and founder ICPs. dowhatmatter.com Guide · How Founders Use AI Twitter (X) outbound for founders: 7-day plan Do What Matter
  18. A clear explainer from the tool many Clay builders use as their enrichment engine. fullenrich.com Guide · How Founders Use AI B2B Email & Phone Waterfall Enrichment FullEnrich
  19. The numbers that justify the approach: match rates, bounce rates, and provider stacking. bettercontact.rocks Guide · How Founders Use AI Waterfall Enrichment: Ultimate Guide BetterContact
  20. Shows waterfall enrichment built into an outreach tool, no Clay required. lemlist.com Guide · How Founders Use AI Waterfall Enrichment: +80% Valid Emails With One Click lemlist
  21. Covers how enrichment quality directly feeds deliverability and reply rates. instantly.ai Guide · How Founders Use AI B2B Waterfall Enrichment: The Ultimate Guide Instantly.ai
  22. Practical provider-ordering advice from a data vendor that lives on find rates. findymail.com Guide · How Founders Use AI Waterfall Enrichment: The Complete B2B Guide Findymail
  23. The structured lesson version with the full enrichment menu explained. university.clay.com Course · How Founders Use AI Enriching People Data (Clay University lesson) Clay
  24. Teaches AI-agent enrichment for the data no database has, like niche firmographics. university.clay.com Course · How Founders Use AI Enriching with Claygent (Clay University lesson) Clay

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 →