WiFi Map - A crowdsourced list of routers and passwords
Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.
wifiphisher - Fast automated way to get the password to a WPA wifi network
Instabridge - Crowdsourced free wifi (now on Android)
WifiMapper - Find free WiFi anywhere in the world
Café Wifi - Find a space with some coffee and connectivity to get your work done.