Okay, you guys, here's the deal.
If you live in the US, have Windows 7, and can get IE9, you can get a TON of free stuff, including:
3 Free Months of Slacker Radio
3 Free Months of AOL Radio
1 Free Month of Grooveshark
1 Free Month of Pandora
Follow
this link. I just did it and I think Slacker is the greatest thing EVER.