I wrote about Chatroulette last month, here’s some wonderful video that is internet + piano + video + flash-enabled randomized connected chat. It’s a wonderful selection.
Note: there are swear words.
I still have not hat the gumption / guts / foolhardiness to actually try Chatroulette though. But I look forward to more interesting improvisation and performance to come out of it. Artistic agenda + random audience = interesting YouTube. Well, or a trainwreck or offensiveness of the worst kind.