This is kind of old news, but http://www.mypoints.com is a pretty cool site - you rack up points by reading ads they e-mail to you. The points can then be redeemed for a bunch of differnt stuff.
I just set up a yahoo mail account so the ads wouldn't clutter up my inbox - it works pretty good.
If you sign up, I'd appreciate it if you'd use my referral ID - JBOWDEN. Thanks!