Jukebox - Collaborative music player
WiFi Map - A crowdsourced list of routers and passwords
Festify - Festify is a free Spotify-powered app that lets your guests choose which music should be played...
Instabridge - Crowdsourced free wifi (now on Android)
PartyOn - Let everyone DJ together, anywhere
Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.