The Y Combinator Database - The definitive database of YC companies with all the metrics
The Google Cemetery - A list of dead Google products and why they died
Startup School - How to start a startup, by Y Combinator
Killed by Google - Killed by Google is the open source list of dead Google products, services, and devices. It serves as a tribute and memorial of beloved services and products killed by Google.
Y Combinator Companies - Interactive list of all 1000+ YC companies
Startup Graveyard - History shouldn't have to repeat itself