Collapsed - Learn lessons from failed startups
userinput.io - Get on-demand feedback for your app, website or idea. Learn how to improve by hearing real opinions.
The Google Cemetery - A list of dead Google products and why they died
UX Timeline - See how some of today's best companies have evolved
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.
UXReality - UXReality: One App Instead of Lab