University of Iowa Family Practice Handbook - A resource designed to cover many of the most common clinical problems facing the resident and practitioner of family medicine. The emphasis is on diagnosis and treatment of common medical illnesses rather than on surgical skills. The Home of this list is the Department of Family Practice, Medical College of Virginia and is operated by V. Olchanski, Ph.D. This site has a very large list of resources of value to primary care practitioners, arranged by topic. BioMedNet - This commercial site maintains links to several hundred full text publications in biology and medicine. All abstracts are free.
Some articles are free and all others can be purchased online.
There are also discussion groups, job postings, and shopping mall. A registration is required. The third edition of the GMO Manual which deals with all aspects of family and internal medicine. Hardin Meta Directory of Internet Health Sources - Maintained by Hardin Medical Library at the University of Iowa. Hardin Meta Directory pages have pointers to the most complete and frequently cited lists in each subject.