Health On the Net Foundation
Health On the Net Foundation mission is to build and support the international health and medical community on the Internet and WWW so that the potential benefits of this new communications medium may be realised by individuals, medical professionals and healthcare providers.
http://www.hon.ch/

ImmuneSupport.com
Chronic Fatigue Syndrome and Fibromyalgia clearing house of treatment & research.
http://www.immunesupport.com/

Lensexpress
LensExpress.com is your complete source for contact lenses, sunglasses, reading glasses, solutions, accessories and more!
http://www.lensexpress.com

U.S. Department of Health
THE DEPARTMENT OF HEALTH AND HUMAN SERVICES is the United States government's principal agency for protecting the health of all Americans and providing essential human services, especially for those who are least able to help themselves.
http://www.os.dhhs.gov/

WebMD
Health has a Homepage
http://www.webmd.com/