I was just stumbling around on the net, and I came across this really interesting site, Musicovery.
It’s a pretty nifty idea really. It’s an online radio, but it plays music based on things like your mood, by dance tempo, or by music similar to your favourites and so on. You can further restrict the music based on genre and time periods.
I found it also seemed to load and buffer music a lot more efficiently than a lot of online radio’s, which is a big plus for me who is quite regularly capped.
It is available in four languages which is pretty cool, so hopefully you’ll be able to find something thats right for you at any time! Enjoy.