The National Institute for Health and Care Excellence (NICE) Guidelines. NICE makes recommendations to the NHS on new and existing medicines, treatments and procedures and on treating and caring for people with specific diseases and conditions.
United States specialty societies representing more than 500,000 physicians developed lists of things physicians and patients should question in order to improve care and eliminate unnecessary tests and procedures.
The Geneva Foundation is an amazingly well organized directory of links organized by diseases and conditions mostly on gynecology and obstetrics. There is also an excellent link directory on free medical journals in all specialties, including psychiatry journals.
The Institute of Medicine (IOM) is an independent, nonprofit organization that works outside of U.S. government to provide unbiased and authoritative advice to decision makers and the public.
Medscape News is a vast free medical education resource and includes articles reviews from the medical literature in Psychiatry.