e.g. you donate $10, they pass on $20 to Doctors Without Borders. It's already reached $2,785.00
They're also putting together a VERY big "Help Haiti" bundle of PDFs which will sell for $20 - one of the PDFs it includes will be Diana: Warrior Princess, the nominal value of the bundle is already over $500. All proceeds from the bundle will also be passed on to Doctors Without Borders. This isn't on line yet but ought to be live in the next few days. If you put money in as a donation as above you will be given a credit towards the purchase of the bundle.
update Tuesday evening: This goes live at Midnight, EST tonight.