It feels like just yesterday we charted the streaming music landscape, but it's already changed in a big way -- Google is muscling in on the likes of Rhapsody, Pandora and particularly Amazon with its Google Music Beta. Being able to take 20,000 of your personal tunes, stream them over the web and cache them locally on your device isn't functionality to sneeze at, so it's time we updated our charts. After the break, see how the big streaming services stack up.
