Startup School - How to start a startup, by Y Combinator
The Google Cemetery - A list of dead Google products and why they died
Apply to YC (Y Combinator) - Curated collection of resources for founders applying to YC.
Failory - Failory is a community visited by startup founders every day to read articles about entrepreneurship, interviews with failed and successful founders, insightful postmortems and our monthly reports.
YC World - Explore Y Combinator companies by country
Reject Them Softly - Rejection letter inspirations from companies