DriveThruRPG.com is doing a clever charity drive for Doctors Without Borders and Haiti — give a $20 donation, and they will give a coupon for $1481.31 worth of digitally downloaded RPGs and materials. You can also give $5 or $10, and they will match the donation
Donate $20 and get a coupon for over a thousand dollars in RPG titles. After you make the donation, you will receive the coupon code in your email. It will also be available in your order history.
They are apparently already overwhelmed with the response, so are asking people to wait a few days to grab their downloads.