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. An independently run test, not a Meta-sponsored case study, that puts Advantage+ Audience next to interest targeting inside the... Search Engine Land Article · D2C Testing Meta's AI-powered Advantage+ Targeting: What We Learned and What to Expect Search Engine Land
  2. Two working media buyers walk through a real multi-million-dollar Advantage+ test built around a single broad campaign carrying... Perpetual Traffic Podcast · D2C Episode 705: Killer Meta Advantage+ Case Study: 1 Campaign, 1 Ad Set, 50 Ads Ralph Burns, John Moran
  3. Triple Whale sits inside thousands of DTC ad accounts as an analytics tool, so this is written specifically for ecommerce... Triple Whale Article · D2C Your Creative Is Now Your Targeting: How AI-Driven Delivery Flipped the Script on Ecommerce Advertising Triple Whale
  4. AdExchanger is required reading in ad tech for a reason: this piece pushes back on the 'broad always wins' consensus and lays... AdExchanger Article · D2C For Meta Marketers, Automation Isn't Always The Advantage (But It's Complicated) AdExchanger
  5. Meta's own India-facing newsroom post on how Indian brands are using its automated ad tools, useful for a direct read of Meta's... Meta Newsroom (about.fb.com) Article · D2C Helping Indian Brands Grow Their Cross Border Business With Meta Ad Tools Meta
  6. Inc42 is India's primary startup trade press, and this piece talks directly to Indian D2C founders about the exact symptom, ad... Inc42 Article · D2C Conquering Ad Fatigue: How D2C Startups Can Revamp Their Facebook Ad Strategy Inc42
  7. The single most India-specific twist on this question: with most orders on COD and a large share coming back as RTO, an Indian... Smartbiz Help Center Article · D2C How to Reduce Return to Origin (RTO) Using Meta Events Smartbiz Help Center
  8. A named, credible Indian D2C brand and its actual targeting choice, a useful real-world data point on when a narrower,... DeltaX Report · D2C Clear Skies Ahead: Mamaearth's 102% ROAS Through Weather-Targeted Marketing DeltaX
  9. Storyboard18 is a leading Indian ad-industry publication, and this covers a homegrown tool feeding verified Indian checkout... Storyboard18 Article · D2C GoKwik Launches Kwik Ads to Boost D2C Performance Marketing Storyboard18
  10. Walks through the exact formula a founder needs to compute their own break-even number before comparing it to anyone else's... Triple Whale Article · D2C Breakeven ROAS: Definition, Formula & Why It's Essential Triple Whale
  11. Taylor Holiday's agency is the most quoted voice in DTC for reframing ROAS around profit, useful pushback against chasing a... Common Thread Collective Article · D2C Why ROAS Is a Terrible Ecommerce Metric + 3 That Actually Matter Common Thread Collective
  12. Straight from Meta: the ground truth on how the number a founder stares at every day is computed, and where it can be soft. Meta Business Help Center Article · D2C Purchases ROAS (Return on Ad Spend) Meta
  13. Explains precisely why the number a founder sees on Meta's own dashboard is not the number that should decide whether ads are... Polar Analytics Article · D2C Why Your ROAS Is Wrong: The Hidden Gaps in Shopify Attribution Polar Analytics
  14. A sharp, practitioner-written essay that takes the margin argument a level deeper than most agency blog posts: down to the SKU. Jordan Glickman Essay · D2C What Contribution Margin by SKU Reveals That ROAS Hides Jordan Glickman
  15. Cleanly separates 'break-even ROAS' from 'target ROAS,' a distinction most benchmark posts skip straight past. Eightx Article · D2C What is ROAS? The definition, formula, and the break-even number your margin demands Eightx
  16. The fastest way to go from 'what should my ROAS be' to an actual number specific to your own products and margins. Eightx Tool · D2C Break-Even ROAS Calculator Eightx
  17. Explains the mechanism behind why 'your Meta ROAS' and 'your real ROAS' are two different numbers, and how to measure the gap... Haus Article · D2C Understanding Meta incrementality testing Haus
  18. A weekly gut check on what is actually working on Meta right now, from someone who has managed real ad budgets rather than... Nik Sharma / Sharma Brands Newsletter · D2C Nik Sharma's DTC newsletter Nik Sharma
  19. Taylor Holiday's team built a forecasting framework across 1,000-plus brands; this podcast is where they think out loud about... Common Thread Collective Podcast · D2C Ecommerce Playbook Podcast Common Thread Collective
  20. For a founder who wants to go past a blog post, this is a structured, paid course built specifically around scaling with... CXL Institute Course · D2C Advanced Meta Ads Course CXL Institute
  21. Copy, paste your own numbers, done. The fastest route from reading about break-even ROAS to actually knowing yours. Adfix Template · D2C Free ROAS and PPC Profit Calculator (Google Sheets) Adfix
  22. A full-length treatment of the profitability lens, LTV, margin, financial systems, that a single benchmark number can never... Amazon Book · D2C Ecommerce Evolved: The Essential Playbook To Build, Grow & Scale A Successful Ecommerce Business Tanner Larsson
  23. Shopify's own India edition, written for the same Indian-market context this question sits in, from a platform that sees ROAS... Shopify India Article · D2C How to Increase Return on Ad Spend (ROAS) in 2025 Shopify India
  24. Straight from the platform that generates the number: how Meta actually calculates and optimizes the ROAS bid goal inside Ads... Meta Business Help Center Article · D2C About ROAS Goal Meta

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