Born and raised near Stuttgart, Germany, Stefan Kellner started to play with the Internet in 1993 while in law school at Heidelberg University.
In 2004 he co-founded plazes.com together with Felix Petersen. Plazes is a bottom-up approach to spatial interaction and a location-oriented service platform, sometimes also dubbed "Mobile Social Software." Plazes was featured several times in publications like Wired, Red Herring, and others, as well as editor's pick at BusinessWeek for "Best of the New Web."
After playing with FidoNet for a few years, Kellner built Heidelberg's first private internet access point in the kitchen of his flat-sharing community. In1995, he founded his first internet company in Heidelberg, building web portals and communities for industry customers. After booting up a new media agency called i-clue in 1997 he moved to Cologne in 2000 and worked for antwerpes & partner ag as CTO and COO until 2004.
Kellner currently divides his time between Cologne and Berlin, and spends his free time with his wife and his 8-year-old daughter building robots, listening to eclectic music, and breeding tiny little trees.
If you feel like finding out more, go to: beta.plazes.com/whereis/stefankellner
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