Governmental Agencies
http://www.cancer.gov/cancerinfo/wyntk/skin/
In depth information about skin cancer at this site is from the National Cancer Institute. It includes 27 sections describing skin cancer, its symptoms, methods of treatment, etc.
Private Organizations
http://www.aad.org/
American Academy of Dermatology offers a variety of publications online to assist in prevention of sun exposure. Titles include: "Facts about Sunscreens," "Going to Summer Camp This Year?" "Sun Savvy Tips for Children of All Ages"
http://www.cancer.org/
American Cancer Society offers a variety of resources and links to other agencies and organizations.
State and University Centers