Any sites like Pandora?

[Poltergeist]

Pandora was an awesome website where you would input the name of a band, and it would create a music station and play songs by that band and also songs by artists similar to the one you input. It was a freaking great way of finding new music, however, the site is now blocked in Europe.

So, are there any sites similar to this? I've tried Jango, but it doesn't seem half as accurate as Pandora, and only seems to have more well-known artists

[The Spoiler]

http://www.last.fm/

[Loki Clock]

http://www.mufin.com/

[Craisin]

Why is it blocked in Euro