Google has started their own music blog called Magnifier and it looks to be a great source to sample some new music and videos. Currently they are showcasing a live track from My Morning Jacket as well a typically trippy interview with frontman Jim James. Getting the music is simple you just click on the “add free music” button.
Google Music is still in beta mode so you need to request an invitation. Once you do get the invite you’ll be able to store up to 20,000 songs in the cloud for free (for now, anyways).
I think this might be worth it. They already have a nice variety of music available for the taking. Click on the picture to grab it.