Ever really wanted to a hear a song but not have access to your iTunes, iPod or iPhone?  Enter Songza.  Calling itself the “the music search engine & internet jukebox,” Songza allows you to listen any song they have in their database, rate it and possibly share or recommend it to a friend.  Possibly a good way to cure that horrible earworm you picked up on the way in to work today. (amusingly, for a lot of the tracks, they’re pulling in the audio from youtube and just not displaying the associated video. clever. Especially since many folks already use youtube as a sort of on-demand jukebox.)