WiFi Map - A crowdsourced list of routers and passwords
Huntathon - Browse and submit Product Hunt Global Hackathon projects
Instabridge - Crowdsourced free wifi (now on Android)
Challenge Hunt - Explore coding contests, hackathons from around the world
Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.
The 24 Hour Startup Challenge - Build startup in 24 hours and win cash prizes 🤑