WiFi Map - A crowdsourced list of routers and passwords
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
WifiMapper - Find free WiFi anywhere in the world
Instabridge - Crowdsourced free wifi (now on Android)
wifiphisher - Fast automated way to get the password to a WPA wifi network
LocationAPI - Instantly locate any device w/ WiFi, celltowers & IP address