Collapsed - Learn lessons from failed startups
The Google Cemetery - A list of dead Google products and why they died
YC Rejects - A community of rejected YC companies
Startup Graveyard - History shouldn't have to repeat itself
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.
How not to launch - Learn lessons on failed products and startups