The AMA's Web site is essentially three sites in one, providing separate directories for patients, physicians, and health-care officials. From medical public policy to issues of medical ethics, medical education, and basic information about how to eat healthily, the AMA Web site is full of valuable resources related to medicine and health.

The National Library of Medicine, the world's largest medical library, offers a Web site that is staggeringly immense. Visit this site to find health information; lists of grants available for doctors and medical students; job postings from around the country for physicians, medical administrators, professors of medicine, and researchers; the latest on every clinical trial currently underway; and databases full of resources on the history of medicine.

For facts, figures, and endless information about medicine in the United States, visit the NIH's meticulously organized Web site. You'll find a timeline of medical advances, a QuickTime video on the NIH and what it does, and hundreds of pages devoted to medical grants and research.

"Images in Clinical Medicine" has been a weekly feature in the New England Journal of Medicine since 1992, presenting its readers with a random group of clinically important images, such as those any doctor might encounter in his day-to-day life (x-rays, ultrasounds, slides) and asking them to make a "diagnosis." Are you a good doctor or a good doctor-in-training? Check yourself with this online version of "Images in Clinical Medicine," which changes each time you take the quiz by drawing upon an archive of 250 images.

Since 1933, the American Board of Medical Specialties has served as the umbrella organization for the 24 medical specialty boards in the United States. The ABMS oversees the certification of new physicians to the various specialties and serves to provide information about the medical specialties to physicians, medical students, patients, and public-health administrators. Visit this site to learn more about the medical specialties and what it takes to qualify for them.

The extensive Web site of the Federation of State Medical Boards provides information about the nature of individual state medical exams, maintains and updates an archive of public health policy documents, and tracks major stories related to medicine in the news. The FSMB site also maintains a page of links to each of the 24 medical specialty boards' Web sites.

The seven doctors featured in "Survivor M.D." learned their trade within the hallowed walls of Harvard Medical School. Dr. Ellen Lerner, who was not involved in NOVA's program, offers this candid, eminently readable memoir of her days at Harvard Medical School from 1994-1998.

Thirty-two physicians discuss their specialties, offering an insightful glimpse of the pros and cons and what they might have done differently in their career paths in retrospect. This volume serves as an excellent resource for medical students beginning to consider specialization.

So you want to be a doctor? What kind of doctor? This comprehensive volume explains the major medical specialties in layman's terms and offers the nitty gritty on what sets each specialty apart from the others, such as average salary, years in training, and day-to-day routine. How to Choose a Medical Specialty also offers lists for further reading on each specialty, so it's a good place to get started if you want to learn more about the various medical fields.

This beautifully illustrated book introduces 22 fictional doctors and nurses representing medical history from Roman times to the present. Journey back to Tudor England and find out what a nurse's workday was like. Storring's book also offers a timeline, a glossary, and a photographs of medical instruments through the ages.