This site has been referred to a couple of times in other threads, but I think it's worth calling to people's attention.

The Hunger Site is a nonprofit website that sends a donation of staple food like wheat or rice to a hungry person, every time someone clicks the button -- with a limit of one click per person per day. The donation is handled through the United Nations Hunger Program and is paid for by companies who put their ads on the site. They don't ask you to register or provide any personal information at all, and you don't have to visit the sponsors' sites. I know there are a lot of bogus charities out there, but this one appears to be legit -- and easy to use. I invite you to check it out.

Aloha,
Mark