Huntathon - Browse and submit Product Hunt Global Hackathon projects
WiFi Map - A crowdsourced list of routers and passwords
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.
Instabridge - Crowdsourced free wifi (now on Android)
Ha.ckathon - Find the right Hackathons for you!
Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.