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
Berkanan - Chat with people nearby. Even offline, on an โ๏ธ.
Postmodern.app - Anonymous, short, ephemeral conversations with others
Treadie - Create your own micro-social network for topics
Insiderr - Tailor made anonymous business feed