Sign up at
http://listen.xmradio.com
This is great if you are thinking of getting XM for your home or car, as it lets you listen to 75 Stations, including a few online-only stations. It does not include news/sports stations for some reason, but it includes most if not all of the music stations, and the comedy stations.
If you are an XM subscriber, its 3.99 to add online-play to your account, and if you are not a subscriber, its 7.99.
Either way, its a good way to get some good tunes at work.
