Below are links to websites you might find both interesting and informative:
American Academy of Dermatology: www.aad.org
American Society of Dermatological Surgery: www.asds.net
National Alopecia Areata Foundation: www.naaf.org
National Psoriasis Foundation: www.psoriasis.org
National Rosacea Foundation: www.rosacea.org
The Skin Cancer Foundation: www.skincancer.org