WiFi Map - A crowdsourced list of routers and passwords
Instabridge - Crowdsourced free wifi (now on Android)
Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.
Wiffy - Alexa, ask wiffy what the wifi password is
Café Wifi - Find a space with some coffee and connectivity to get your work done.
Community Canvas - A framework to build meaningful communities