Well, the concept has expanded, and now there are go-click-it sites for both saving the rainforest and to fund free mammograms for women who otherwise could not afford them. All of these causes are good, and I've heard nothing but good about the program adminstration. Go click. Buy stuff if you can afford it. It all helps.
One of my dear friends died from breast cancer a few years back, so this one is particularly poignant to me. It's a horrible experience for everyone involved. Mammograms and early detection helps save the lives of women every day, but still, 43,000 a year die from it. Do what you can to help pare that number down. Go. Click. It doesn't cost anything, and can make a huge difference in someone's life.
(via Boing Boing)