There is a website which provides free mammograms for women in need. This month one of their sponsors is going to provide 100 free mammograms if they get enough clicks. Maybe you already know about it and its sister sites, but check out The Breast Cancer Site and click daily!
Here is a little explanation from the website about how it works.
Your click on the "Click Here to Give - it's FREE" button helps fund free mammograms for women in need — low-income, inner-city and minority women whose awareness of breast cancer and opportunity for help is often limited. Your click is paid for by site sponsors, and mammogram funding is provided to clinics throughout the U.S. through the efforts of the National Breast Cancer Foundation .