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.
Wiman - Browse over 70 million free mobile WiFi hotspots
wifiphisher - Fast automated way to get the password to a WPA wifi network
WifiMapper - Find free WiFi anywhere in the world