Roundio - Explore what people posted to Instagram or Flickr near you
Roomvine - Chatrooms for real life venues, neighborhoods and events
Herefeed - See what's hot near you. Powered by Instagram.
Spectrum - Browser-based app to visualize the frequencies of an audio file.
What's poppin? - Find out what people around you are thinking
CityBugs - Improving cities to make them a better place to live in.