I saw this last night on CNN. All you have to do is go on the page and click, and with each click, sponsors donate 1 1/2 cups of food to areas around the world that really need it. You are limited to one click a day. While you are there, click one of the sponsor links to make sure the sponsors feel like they are getting something and there's a reason for them to continue.
Go here:
http://www.thehungersite.com