Saw this mentioned on the BBC's click programme the other day and I have to say it has simply blown me away on a number of fronts. It is quite simple the Dogs ******'s [new validation? I'm sure I typed Boll_ox' s !] for music.
Simply type in a band or artist name and the station plays a track. Hmm...nice then it jumps to similar bands / artists /genre and it plays another track and another. Don't like the track click skip. I am discovering so much new music from bands/artists I may know the name but have never listened too, interspersed with some of my favorite bands. My head is just about to explode.
Tried typing in PJ Harvey got my track - it moved onto Nick Cave and the Bad Seeds, Muse, The Dressden Dols(?), Plasebo, The strokes ("Is this it" - what a track), Interpol -PDA(?), now the Smiths (half a person).
You don't need to register to do the above, but if you do the software builds up a picture of what you listen too (called "scrobbling" apparently?)and can make further recommendation and get better at playing what you like. It's like the perfect radio station - no adverts, no Phone in Comps, no inane DJ Chat. Try it.
Regards
BoaT
http://www.last.fm/listen/