For further informationI removed all the dead links and there wasn't much left! Will add new resources soon.
Merck Manual Online This contains information about just about every disease and medical condition anyone might need to look up and includes etiology, signs and symptoms, prognosis, and treatment
AHRA Links Medical Search Engine Index As the name suggests, this is an index of medical search engines, allowing you to search the web for specific medical issues.
The homepage of the Centers of Disease Control and Prevention (CDC)
Mental Health Links page with over 1000 links
Other more specific links are included at the relevant points in the rest of this section.