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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. The diagnostic that stops you misreading a growth problem: decide whether you are short on fuel or short on engine before you... MKT1 Newsletter Newsletter · About 12 min read · GTM Building an efficient marketing machine: the fuel & the engine Emily Kramer
  2. A one page brief covering goals, audience, creative angle and channels, written before anything longer than a tweet. It is the... MKT1 Newsletter Newsletter · About 10 min read · GTM The GACC Marketing Brief: The best framework we've created Emily Kramer
  3. The whole mental model in one short post: not measuring acquisition cost and lifetime value is the point, not an oversight, and... Z-Connect by Zerodha Article · About 3 min read · GTM Why Zerodha doesn't advertise Nithin Kamath
  4. The referral history, including the years incentives existed, the regulatory ban, and the striking observation that referrals... nithinkamath.me Article · About 4 min read · GTM How Zerodha grew without Advertising Nithin Kamath
  5. The clearest statement of the tradeoff in his own words: venture capital pushes spend toward sales and marketing and away from... Business Today Article · About 8 min read · GTM "If you don't invest in R&D, you won't have long term growth," says Zoho Corp's boss Sridhar Vembu Sridhar Vembu
  6. The present day proof that this is a policy and not a phase, with Mani Vembu confirming R&D spend still exceeds marketing spend... Forbes India Article · About 7 min read · GTM How Zoho is rewriting the rules of enterprise tech Naini Thaker
  7. The nine models she actually uses, led by growth loops versus funnels. Read this first, because everything else she says... Elena's Growth Scoop Newsletter · About 12 min read · GTM My 9 Favorite Growth Frameworks Elena Verna
  8. A real growth org mapped out pod by pod, plus the correction most people need: Dropbox does not run on the famous referral... Elena's Growth Scoop Newsletter · About 10 min read · GTM Growth at Dropbox: An Inside Look Elena Verna
  9. The market you are pricing into, in numbers from 240 companies, so your pricing debate stops being two people's opinions about... Growth Unhinged Report · About 12 min read · GTM The state of B2B monetization in 2025 Kyle Poyar
  10. The 8 percent median and the full distribution across 200 B2B products, which tells you fast whether your filter is too loose... Growth Unhinged Report · About 10 min read · GTM A new look at free-to-paid conversion Kyle Poyar
  11. This is where the numbers live: the rep churn targets, the 25 percent attrition buffer he plans for, and why he will not let a... SaaStr Article · About 20 min read · GTM Sales AMA with Mark Roberge: Your Burning Questions Answered (Video + Transcript) Mark Roberge
  12. Six named failure modes including his Sustainable Moat Test, plus the promotion trap that catches almost every first time sales... SaaStr Article · About 12 min read · GTM The Most Common SaaS Sales Potholes and How to Avoid Them with Mark Roberge (Podcast #498 and Video) Mark Roberge
  13. The densest short read on the model: the 76 percent category king number, the Magic Triangle, and the full seven step category... The Marketing Journal Article · About 12 min read · GTM "Play Bigger: The How and Why of Category Design" - An Interview with Christopher Lochhead Christopher Lochhead
  14. The canonical essay, and the one that actually spells out different discovery and monetisation playbooks per segment rather... sajithpai.com Essay · About 28 min read · GTM The Indus Valley Playbook Sajith Pai
  15. How the report is actually assembled and what the 2024 edition covers, which is the usable route in given the report's own home... Sajith Pai's Newsletter Newsletter · About 10 min read · GTM Indus Valley Report Reminiscences, Strategy, Tokyo Trains, and Birkin Bags Sajith Pai
  16. The dated timeline you need to check the story against: founded 13 October 2010, first customer June 2011, 100 customers in 103... Freshworks Article · About 6 min read · GTM A golden birthday: Turning 13 on the 13th Sanjay Gupta
  17. Written just after the Nasdaq listing, it states the arrangement plainly: based in Chennai with half of sales origination there... Forbes India Article · About 12 min read · GTM Startup to Scaleup: How Girish Mathrubhootham built the Saas-y Freshworks Harichandan Arakali
  18. The founder's own account, including the detail that reframes the whole story: Postman was announced in a Stack Overflow... Postman Blog Article · About 10 min read · GTM How we built Postman, the product and the company Abhinav Asthana
  19. The scale the free adoption eventually bought: 17 million developers, 500,000 organisations, and 98 percent of the Fortune 500,... TechCrunch Article · About 4 min read · GTM API platform Postman valued at $5.6 billion in $225 million fundraise Manish Singh
  20. The cleanest narrative of how the word of mouth actually ignited: John Resig's tweet, 10,000 beta users in three weeks, then... buildd Article · 6 min read · GTM How two IITB grads scaled BrowserStack to $4B valuation & $200M revenue! buildd
  21. Word of mouth is only half of it. This is the search side with numbers, including the free developer tools built specifically... Concurate Article · About 10 min read · GTM BrowserStack Marketing Strategy: How Useful Content Drives Adoption (Updated 2025) Concurate
  22. The honest correction to the legend: BrowserStack's go to market moved from pure word of mouth to a conventional sales and... Sacra Report · Company report · GTM BrowserStack revenue, valuation & funding Sacra
  23. Education is the distribution channel, and this is written by the person who built it, with the actual scale: certification... Z-Connect by Zerodha Article · About 6 min read · GTM Zerodha Varsity in 2023 Karthik Rangappa
  24. The thesis proved in the profit and loss: 47 crore rupees of advertising against 8,847 crore of revenue, roughly half a... Entrackr Article · About 4 min read · GTM Zerodha cash reserve stands at Rs 22,679 Cr in FY25 Kunal Manchanada

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