At work I listen to http://www.pandora.com . There's a limit on how many songs you skip per hour (not too much, actually), but in that case you can always create a new station I'm often at http://www.last.fm , but just for the stats, not for the radio-thing, but maybe it's ok, too That's all I can say, sorry.....
www.woa-radio.de ( http://www.wackenradio.com/ ) I'm sure everyone knows about wacken's own radio, but i only just found it for myself, so i thought i'd share, just in case the international newbies like myself don't know of it yet.
*me looks at Top 100* Wow, it now looks much better than when it only started this year!!! Back then, there was so much nu-metal ....they seemed to have improved now. My favourite inet-radio seems down at the moment Link (currently dead) is/was - http://213.112.186.32:8000/index.html
Rarely listen to internet radio but when I do - NeverEndingWonder Radio http://stations.loudcity.com/317/loudcitypage3.htm
I've been listening to Wacken Radio all day, and I must say, it's pretty cool. But, they were just playing Tom Jones - 'Green, Green Grass Of Home'! What was that about?!?