Instabridge - Crowdsourced free wifi (now on Android)
WiFi Map - A crowdsourced list of routers and passwords
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
Wiffy - Alexa, ask wiffy what the wifi password is
Wirepool - Crowdsourced WiFi passwords for everyone 📶
Community Canvas - A framework to build meaningful communities