Foursquare - Foursquare is all about helping you find new ways to explore your city.
OpenToonz - OpenToonz is an animation program that is a free software version of Toonz, the animation software...
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
Synfig Studio - Just another WordPress site
Yellow Pages - YP.com local search connects you with over 19 million local businesses.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.