Stealthy: Secret Messenger - Chat anonymously with friends & strangers
Hiyo - Get advice, opinion or discussions from strangers.
Roomvine - Chatrooms for real life venues, neighborhoods and events
YouHue - A fun new way to ask "How are you?"
Jodel - What is Jodel all about? Jodel is the community that shows you what's happening in your area in real-time.
Startups Anonymous - Anonymously ask questions and share stories. AA for Startups