Wiman - Browse over 70 million free mobile WiFi hotspots
Instabridge - Crowdsourced free wifi (now on Android)
WiFi Map - A crowdsourced list of routers and passwords
WifiMapper - Find free WiFi anywhere in the world
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
Wirepool - Crowdsourced WiFi passwords for everyone 📶