There are many different options right now to stream music. There's Spotify, Pandora, Rhapsody, iHeartRadio, GrooveShark and the list goes on and on. For me though, I'd have to say it's a matchup between Spotify and Pandora. Here The Music Bed has done a side-by-side comparison of the popular music streaming services, Pandora and Spotify.
[Source: The Music Bed]
Which Streaming Music Service Do You Use?