Health On the Net Foundation
Guides lay persons and non-medical users and medical practitioners to useful and reliable online medical and health information. Provides leadership in setting ethical standards for Web site developers.
http://www.hon.ch

WebMD
Resource for consumers, physicians, nurses, and educators. Includes news, chat forums, health quizzes and consumer product updates.
http://www.webmd.com/

AOL Health
Find advice, information about diseases and drugs, fitness tips, and news items.
http://www.aolhealth.com/

BBC Health
Features current news plus archives, guides by subject, "Ask a Doctor" inquiry feature, a searchable conditions database, message board, and e-mail newsletter subscription.
http://www.bbc.co.uk/health/

InteliHealth
Harvard Medical School's consumer health information, journal databases, a medical dictionary, FAQs on latest news and live forums.
http://www.intelihealth.com/