Thought this was worth mentioning. Spotted it on The Paper a few weeks ago.
The Breast Cancer site is having trouble getting enough people to click on their site daily to meet their quota of donating at least one free mammogram a day to an underprivileged woman. Their corporate sponsors/advertisers use the number of daily visits to donate mammograms in exchange for advertising.
The website is hhp//www.the breastcancersite.com. Click on "donating a mammogram" (pink window in the middle).
It takes less than a minute and doesn't cost you a thing. Pass the word! -website along to friends.