Jan Exß
Jan Exß's surname is pronounced X and is hard to spell and speak even in German language. There seems to be only one family Exß (or Exss) in the world, spread over Germany and Chile. It's origin has been analysed by Jürgen Udolph for SPIEGEL ONLINE (German article). If ß (sharp S) is not in your alfabet you may spell his name Exss.
His email address is jan@exss.de and he has a PGP public key for private conversation.

- Picture by Kurt Greul