QUOTE (Ganymed @ Jan 4 2005, 06:49 PM)
last.fm is a personalised radio station which plays (almost) always exactly what I like

Hey, this stuff is great! I've been listening to it for a couple of hours now and I really like it.
The only personalised radio station I've known so far is
LaunchCast, but last.fm is definately better since it doesn't require IE (the authors even recommend Firefox!), has better quality and has no ads. Launchcast does provide a paid subscription option with no ads and supposedly better quality, but I've never been able to try it since it's not available outside the US.
I look forward to seeing other recommendations in this thread.
As far as non-personalised radio stations go, I kinda like
Radio Paradise.
Edit: Der_Iltis: If you're looking for house/trance/techno radio stations, you should definately check out
Digitally Imported. But I guess you already knew that one...