Take a look to this incredible and very nice music search engine. You can have your playlists and also share your prefered music. jogli.com (I dont have nothing to do with it)
hey domino thats a pretty cool website just added it to my favourites the only thing that I dont like is the loading components box that comes up its kind of annoying but guess something to get used to. Did a few searches on there to and the music actually related to what I search for came up which was a suprise usually you get something in completly the other direction thumbs up for this find.
Well its new and in Beta stage...but it seems will be a lead search engine/site for music in the coming months/years