if you have exhausted your library like i have, try 8tracks.com. you can select from a bunch of genres and people have put together some awesome playlists of eclectic, diverse tunes. check out ethereal and cockteau twins if you were young in the 80's and like a cure-ish/cocteau twin-ish hour or so of tunes. some good playlists in there. also been doing a lot of prog rock playlists. it is a free site. i have an account but i don't think i have ever gotten an email from them so they are pretty spam free and using friendly.