I’m suprised I havn’t posted about this sooner, it’s fantastic it’s called pandora and is a great way to find new music!!
Basically you create a station by selecting your favourite band and hay ho presto a steady stream of sound alike bands flow your way for you to listen to. You get the chance rate each track as it comes your way so pandora knows what not to play to you. Its great specially since it throws up some really unexpected results and leads you off in to new musical territories!! Try it you’ll love it. Go Here for pandora