Hi Everyone! When I was on the Delta Airlines website recently, I found a link for a program called E-Rewards. I haven't tried it yet, but supposedly you can earn points by reading e-mails. You can redeem the points for travel on Delta, United, or for discounts on Hertz and Blockbuster. Like I said, I haven't tried it, so I don't know all of the specifics, but here is the link:
http://delta-air.com/home/Inbox_copy..._New/index.jsp
I don't know if this info has already been posted on this board; if it was, Sorry! If not, I hope it helps!