SciTalk.com http://www.scitalk.com/
Science related resources for the public on health and disease. Discussion boards, chat, news, patents, clinical trials and books.
Selfhealth http://www.selfhealth.com.au/
Consumer health information including a medical Q&A database and an Australian drug database. Covers infertility, emotional health, sexual health & integrative & complementary health issues.
SymptomTracker http://www.symptomtracker.com
An interactive medical diagnosis and treatment reference that uses brief yes/no questions about a users symptoms to arrive at possible conditions and treatments. [Please note the "Warning" before proceeding - ed]
The Doctor's Doctor http://www.thedoctorsdoctor.com/
Explains how to interpret laboratory, surgical pathology, and cytology reports and provides information about various conditions and diseases. Maintained by a group of pathologists.