staying by the theme kunsthalle...i inverted the url and found this amazing online kunsthalle developed by the mysterious quod est/q-e. once you get there you´ll find an interactive site all to discover.
check for instance nonsense, or love4cash - please wait...then you dont know what you are waiting for - or this amusing Artificial Intelligence program...
(sorry most of it is in german again).

thats such an interesting way to present net based artwork, although it´s a bit from a gaming fact i found out that Stuttgarter visual artist Bernd Mattiebe, who also developed the multimedia interactive story WOGGER, had his hands pasted in it. you should definitely take some time and check it out!