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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. This gives you a concrete cold email structure for the exact spot you are in: no case studies, so you lead by asking for... Medium Article · About a 10 minute read · Starting Up The Anatomy of an Effective Cold Email for Early Adopters Mert Hilmi Iseri
  2. This is the rare piece that treats the From field as a real decision instead of a footnote, walking through what a personal... Mailpool Article · ~10 min read · Starting Up Cold Email From Name Strategy: The Hidden Deliverability Lever Nobody Tests Hugo Pochet
  3. The clearest argument for why you, personally, should be the one doing early outreach and sales, which is exactly why using... Heavybit Essay · ~15 min read · Starting Up How to Run Founder-Led Sales (Adapted from Pete Kazanjy's Founding Sales) Walter Roth
  4. This is a founder-first checklist, not a generic sales listicle, so it names the errors you can catch in your own draft before... Polymail Blog Article · ~8 min read · Starting Up 10 Cold Email Mistakes Founders Still Make (And How to Fix Them) Pulin Thakkar
  5. Josh Braun spends his days tearing down cold emails, and here he flips the frame: he takes apart one real email that survived... joshbraun.com Essay · ~6 min read · Starting Up A Cold Email I Didn't Delete Josh Braun
  6. Cold outreach is one channel on a much bigger map, and Balfour explains why the channel that works for you is decided by your... brianbalfour.com Essay · About a 15 minute read · Starting Up Get Out of the ARPU-CAC Danger Zone with Channel Model Fit Brian Balfour
  7. A useful counterweight, written specifically to slow founders down before they hire. It names the false signals, feeling tired... Techstars Article · 8 min read · Starting Up Founders: Your First Sales Hire Is Probably a Mistake Techstars
  8. This is the answer to when do I stop following up. Steli Efti lays out how to send a final, respectful email that closes the... Close Article · 10 min read · Starting Up How to Write Breakup Emails for Sales Steli Efti
  9. The most complete walk-through of the TRN-to-GSTIN flow we found, screen by screen, read this once before you open the actual... ClearTax Article · D2C How to Register for GST India Online, Guide for GST Registration Process Online ClearTax
  10. Written by practitioners for practitioners, so it's blunter than most consumer blogs about where applications actually get... TaxGuru Article · D2C GST Registration Process 2025, Complete Step-by-Step Guide TaxGuru
  11. A filing-service view of the process, which means it's unusually precise about the exact document list per business type... IndiaFilings Article · D2C GST Registration Procedure Details for India Businesses IndiaFilings
  12. A fintech's plain-language take on registration, useful mainly for its clear cost and timeline framing, good gut-check against... Bajaj Finserv Article · D2C GST Registration Process: How to Get GST Number Online in India Bajaj Finserv
  13. Frames registration decisions (regular vs composition, voluntary vs mandatory) rather than just the mechanical steps, useful... Jordensky Article · D2C Complete Guide to GST Registration Process in 2025 Jordensky
  14. Written for store owners, not media buyers, it walks the exact setup path a D2C founder needs: Business Suite, pixel,... Shopify Blog Article · D2C Facebook Advertising: How It Works and How to Start Shopify
  15. Jon Loomer is the internet's most rigorous, un-hyped Meta ads explainer, and his Advantage+ breakdown is the sober... Jon Loomer Digital Article · D2C Get Started with Advantage+ Shopping Campaigns Jon Loomer
  16. A calm, checklist-style diagnostic for the most demoralising moment, clicks but no sales. It correctly points the finger at... WordStream Article · D2C Facebook Ads Not Converting? 9 Common Reasons (+How to Fix) Susie Marino
  17. Benchmarks pulled from ~35,000 real ecommerce brands across 15 verticals, so you can sanity-check your CPM, CTR and ROAS... Triple Whale Article · D2C Facebook Ad Benchmarks by Industry (Updated Data) Triple Whale

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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