Rdio vs. Spotify Music Streaming

We've looked at Spotify and, most recently, Xbox Music, but with the music subscription space getting more crowded by the day, what about all those other online music players?

One of our favorites is Rdio, launched by the creators of Kazaa and Skype. It hasn't gained quite as much traction as its rival Spotify, but that doesn't mean the digital music service isn't as good — because it is, and in some areas, it's better. Here's a look at why Rdio might become your next music player of choice.