MedAcess..this site contains medical information on any topic for both the health care worker and the general layperson. You must register to use the site but it is free.
The Diabetes Mall provides extensive diabetes information, the latest research findings, a free weekly newsletter and great discounts on diabetes products.
Talk About Sleep a sleep disorder community providing authoritative sleep information and live sleep disorder support: news, chat rooms, message boards, and articles
All the Virology on the WWW: This up to date index site is maintained by Dr. David M. Sander at Tulane University Medical School in New Orleans, and seeks to link and catalog virology, microbiology and related pages world-wide.