Finally, after launching in Europe almost three years ago, Spotify launches in the US.  What is Spotify?  It is a free (or paid premium) music service that combines the best of Pandora, Google music, rhapsody and amazon into one service.  As or right now, you have to sign up to be on the waiting list for a free account or you can pay $4.99 and up to get started immediately.  Click here for more info.