Every resource founders actually use, in one library.

What founders use most, ranked by how many answers lean on it.

1. The auction runs on Meta's estimate of who will buy, and that estimate is only as good as the purchase data you send back. This... Meta for Developers Article · D2C Conversions API Meta for Developers In 2 answers
2. The longest running, most revised book in this category, useful for a founder who wants the full mental model of Meta... Entrepreneur Press Book · D2C Ultimate Guide to Facebook Advertising (4th edition) Perry Marshall, Bob Regnerus, Thomas Meloche In 2 answers
3. Meta's own page on how tax is applied to your ad spend, the starting point for an Indian founder before assuming their invoiced... Meta Business Help Centre Article · D2C Taxes on Meta ads placement Meta Business Help Centre In 2 answers
4. This is the source of truth Meta itself maintains, so when third-party tutorials disagree this is the page that settles it. Meta for Developers Article · D2C Conversions API: Get Started Meta for Developers In 2 answers
5. This is Meta's own definition of the learning phase and the roughly 50 optimization events a week benchmark our short answer is... Meta Business Help Center Article · D2C About the Learning Phase Meta In 2 answers
6. Meta's own pricing and budgeting primer spells out the actual platform minimums, so you know the floor before you decide your... Meta for Business Article · D2C Facebook and Instagram Ads: Budgets, Costs & Schedules Meta In 2 answers
7. Razorpay processes payments for thousands of Indian D2C brands, and this piece gives category wise CAC benchmarks in rupees,... Razorpay Learn Article · D2C Customer Acquisition Cost: A D2C Guide to Profitability Razorpay Learn In 2 answers
8. A trade-press explainer of Meta's Andromeda delivery system, the actual AI engine behind why broad and Advantage+ now... Marketing Brew Newsletter · D2C How Meta's AI Push Is Changing Ad Creation Marketing Brew In 2 answers
9. Real spend data across 80,000 ads, not survey guesses, and it proves the exact point that 'what's good' depends on category. Billo Report · D2C What Is a Good ROAS for Ecommerce? Benchmarks for Facebook, TikTok & More Billo In 2 answers
10. A March 2026 account of how shopping inside ChatGPT changed: the launch of in-chat checkout in 2025, OpenAI's step back from... Talon.One Article · D2C ChatGPT Shopping and Instant Checkout: Exploring the Future of Commerce Isabelle Watson In 2 answers
11. WhatsApp's own tour of the Business app: profile, greeting, away messages, quick replies, labels, catalog and catalog links,... business.whatsapp.com Article · 8 min · D2C WhatsApp Business App features WhatsApp In 2 answers
12. WhatsApp's own instructions for wa.me links, including links that open a chat with a pre-filled message. faq.whatsapp.com Article · 2 min · D2C How to use click to chat WhatsApp In 2 answers
13. WhatsApp's consumer terms, which prohibit bulk messaging and auto-messaging from regular accounts; which is why 'bulk sender'... whatsapp.com Article · 15 min · D2C WhatsApp Terms of Service WhatsApp In 2 answers
14. Meta's help centre hub for the paid business subscription: what it includes, eligibility, ID and name rules, verification... facebook.com Article · 5 min · D2C Meta Verified for businesses Meta In 2 answers
15. Instead of theorising about PLG versus sales-led, it lays out what 30 real companies actually did, segment by segment. It is... Lenny's Newsletter Newsletter · ~15 min read · GTM GTM motions of 30 B2B SaaS companies Lenny Rachitsky In 2 answers
16. Draws the line between RevOps and SalesOps in terms of scope, metrics and tactics, which is the distinction people applying for... Clari Article · ~10 min read · GTM Revenue Operations vs. Sales Operations: A Complete Guide Clari In 2 answers
17. Zenoti and MindTickle founders on validating at home before expanding, and on finding a handful of customers willing to build... SeedToScale (Accel India) Article · ~12 min read · GTM Entering a New Market as a SaaS Business and Finding First Customers Ajay Sethi In 2 answers
18. Almost everything written about cold call openers is opinion. This is 90,380 recorded calls scored by whether a meeting got... Gong Labs Article · short read · GTM Proven cold call opening lines that work Chris Orlob In 2 answers
19. Shows the actual arithmetic of list building, cutting 66,000 companies down to 5,700 real targets, then tiering them by how... Growth Unhinged Newsletter · long read · GTM An outbound playbook for 2025 Fivos Aresti In 2 answers
20. The clearest definition yet of the role that is quietly reshaping outbound teams, with how Intercom, Canva, Notion and Ramp... Clay Article · long read · GTM GTM Engineering: What It Is, How It Works, and How to Hire Mishti Sharma and Varun Anand In 2 answers
21. Shows how average contract value really grows as a company scales from seed to IPO, and makes the case that most of the gain... Growth Unhinged Newsletter · short read · GTM How to have 'the talk' with your customers Kyle Poyar In 2 answers
22. The bounding method for a first price (cost to serve as the floor, cost of a heavy power user as the ceiling) plus the advice... Andreessen Horowitz Essay · long read · GTM The Price Is Right: And for Early-Stage SaaS Companies, It Needs to Be Steven Sinofsky In 2 answers
23. Maps tiers to how adoption actually spreads (casual user, professional, team, organisation) rather than to a feature matrix,... Andreessen Horowitz Article · long read · GTM Bottom Up Pricing & Packaging: Let the User Journey Be Your Guide Jennifer Li and Martin Casado In 2 answers
24. Starts from the fact that Indian B2B search volumes are many times smaller than US equivalents, which breaks the imported US... upGrowth Article · long read · GTM B2B SaaS SEO Playbook India 2026: From Rs 10Cr to Rs 100Cr ARR Amol Ghemud In 2 answers

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