Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
WiFi Map - A crowdsourced list of routers and passwords
Palaround - Meet people you should be friends with.
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
Babble - A more personalized social network
Instabridge - Crowdsourced free wifi (now on Android)