Startup School - How to start a startup, by Y Combinator
Hoodmaps - Crowdsourced neighborhood 🗺 maps to navigate a city 💫
YC World - Explore Y Combinator companies by country
YouMap - The Human Atlas™
Apply to YC (Y Combinator) - Curated collection of resources for founders applying to YC.
Zenly - Zenly is a GPS tracker to locate your friends in realtime.