Zingl

Zin.gl discovers people's common ground through social networks and enables them to connect with each other.

Zingl deeply mines the interest graph (through FB, 4square, Twitter, Linkedin) and does instant matching based on what you have in common. - People with limited social graphs get automatic-generated questions based on interests/check-ins of people nearby (geolocation). - Zingl allows you to be matched with people who are not even member of Zingl. - Zingl doesn't send messages back to the social graph and allows 100% private use.