Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
WiFi Map - A crowdsourced list of routers and passwords
LockOnMe - LockOnMe is a location-sharing app, displaying targets and associated Points Of Interest on maps & fun radars.
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
Foursquare - Foursquare is all about helping you find new ways to explore your city.
Instabridge - Crowdsourced free wifi (now on Android)