Health Reference Center - Academic covers medical, nutrition, and public health topics. It includes a mixture of scholarly journals and popular magazines as well as some reference books, news articles, and multi-media resources. It has some full text publications.
The Merck Manuals Online Medical Library for Healthcare Professionals provides reference material on diagnosis, signs and symptoms, prognosis and related treatments including drug therapies
Physicians' Desk Reference.net is geared towards physicians and other health care practitioners. It "provides subscribers with FDA-approved labeling as well as point-of-care drug information".
