Every resource founders actually use, in one library.

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

1. Drawing on thousands of office hours, Caldwell separates when to just not die and keep going from when to actually pivot, which... Lenny's Podcast (Dalton Caldwell) Podcast · ~80 min · Starting Up Lessons from 1,000+ YC startups: pivoting, resilience, and avoiding tar pit ideas Dalton Caldwell In 4 answers
2. Lenny interviewed dozens of people who built Airbnb, DoorDash, Thumbtack, Etsy, and Uber, then distilled how they actually got... Lenny's Newsletter Article · ~25 min read · Starting Up How to Kickstart and Scale a Marketplace Business (Part 1) Lenny Rachitsky In 4 answers
3. Meesho literally started as sellers running WhatsApp boutiques, which is the spreadsheet and WhatsApp validation path playing... Prime Venture Partners Podcast Podcast · ~45 min listen · Starting Up Vidit Aatrey (Meesho) on Building a Category-Defining Startup Vidit Aatrey and Amit Somani In 4 answers
4. When you need to reach the active or influential people in your niche cold, this helps you build a targeted list and find their... Apollo.io Tool · Starting Up Apollo.io Apollo.io In 4 answers
5. Tom Blomfield's practical framework for pricing when you sell to businesses, including why to charge from the start and how to... Y Combinator Startup Library Video · Starting Up How to Price for B2B (Tom Blomfield, Y Combinator) Tom Blomfield In 4 answers
6. Cohen bootstrapped two companies past a hundred million in revenue, and he is blunt that a typical launch converts around one... A Smart Bear (Jason Cohen) Essay · 15 min read · Starting Up Excuse Me, Is There a Problem? Jason Cohen In 4 answers
7. The other side of the question, honestly told, including when a coordinated launch is actually the wrong move. It shows how... Lenny's Newsletter Article · 15 min read · Starting Up How to Successfully Launch on Product Hunt (When It's Right for Your Startup) Leo Bosuener In 4 answers
8. A practical, structured playbook for the exact fear in this question: users quietly leaking away. Lenny breaks retention into... Lenny's Newsletter Article · ~15 min read · Starting Up How to Increase Your Product's Retention Lenny Rachitsky In 4 answers
9. This is the two sentence post that named the whole category you are deciding about, from an OpenAI co-founder. Read it to... Andrej Karpathy (X) Thread · 1 min read · Starting Up The original "vibe coding" tweet Andrej Karpathy In 4 answers
10. A clear, tool by tool guide to turning an idea into a working prototype in minutes, aimed at people who do not code. It sorts... Lenny's Newsletter Article · 25 min read · Starting Up A guide to AI prototyping for product managers Colin Matthews In 4 answers
11. Context on how Indian founders are actually using no-code to launch without engineering teams, with real examples. It is useful... KrASIA Article · Starting Up Indian Founders Say Yes to No-Code Tools Shreya Asopa In 4 answers
12. A free, fast preview of the Refactoring UI mindset that you can apply this afternoon. It gives you seven fixes (use more white... Refactoring UI (Medium) Article · 10 min read · Starting Up 7 Practical Tips for Cheating at Design Adam Wathan and Steve Schoger In 4 answers
13. A deep, practitioner heavy set of guides from operators who built strong technical teams from scratch, useful once you commit... First Round Review Article · long read · Starting Up Hiring engineers First Round Review In 4 answers
14. Finding a great engineer is only half the battle when everyone is competing for them, and this piece is about the other half:... Y Combinator Startup Library Article · Medium read · Starting Up Convincing engineers to join your team Y Combinator In 4 answers
15. A venture firm's field guide to engineering hiring for founders, covering the full arc from defining the role to sourcing,... CRV Article · Long read · Starting Up How to Hire Engineers: A Guide for Founders CRV In 4 answers
16. Interactive comic style teardowns of real products like Airbnb, Duolingo, and Spotify that show UX and psychology principles in... Growth.Design Tool · browsable, ~5 min each · Starting Up Growth.Design Case Studies Growth.Design In 4 answers
17. A clean primer if you have never run a test. It defines the three pieces that matter (a facilitator who does not lead,... Nielsen Norman Group Article · ~12 min read · Starting Up Usability Testing 101 Kate Moran In 4 answers
18. A tight distillation of what YC drills into every batch, with launch quickly and iterate as a core plank. It is the checklist... Michael Seibel (michaelseibel.com) Article · 10 min read · Starting Up YC's Essential Startup Advice Geoff Ralston, Michael Seibel In 4 answers
19. If launching is a repeated habit rather than one event, you need a low-stakes place to keep launching, and Product Hunt is the... Product Hunt Tool · Web platform · Starting Up Product Hunt Product Hunt In 4 answers
20. A transcript of a real switch interview so you can hear what a great customer conversation actually sounds like. Reading it... Jobs to be Done Radio Article · Starting Up The Jobs to be Done Mattress Interview Jobs to be Done Radio In 4 answers
21. Cagan argues your job is to deliver outcomes, not to maintain a prioritized list of everyone's requests. That is the backbone... Silicon Valley Product Group (Marty Cagan) Essay · 10 min read · Starting Up Product Roadmaps Marty Cagan In 4 answers
22. A counterweight for when you overcorrect into safe, small, derivative ideas. Graham describes why the biggest ideas often feel... Paul Graham (paulgraham.com) Essay · ~12 min read · Starting Up Frighteningly Ambitious Startup Ideas Paul Graham In 4 answers
23. This one focuses squarely on the method your short answer champions, building TAM up from real customer counts and pricing... Qubit Capital Article · Starting Up Bottom-Up Market Sizing for Startups Qubit Capital In 4 answers
24. This is the original Sequoia template that put "Why now" on the map as a named slide investors expect. It states the test... Sequoia Capital Template · 10 min read · Starting Up Writing a Business Plan Sequoia Capital In 4 answers

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