Doctor's Guide to the Internet is a commercial Web site with roundups of the latest medical news and links to other health-related Internet resources selected by users of the site. Registration is requested but not required.

HealthNewsReview.org reviews health care news for balance, accuracy and completeness. Gary Schwitzer, a professor of journalism at the University of Minnesota, and his team of reviewers evaluate how the media covers major medical news to evaluate whether stories meet several criteria, like including quotes from independent experts who are not involved in the subject research and reporting potential conflicts of interest.

The Journal of the American Medical Association (JAMA) is one of the leading, peer-reviewed general medical journals in the world.

Produced by the publishers of the New England Journal of Medicine, Journal Watch is designed to help physicians and allied heath professionals save time and stay informed by providing brief, clearly written, clinically focused perspectives on the medical developments that affect practice.

MedPage Today bills itself as a medical news service for physicians that links consumer medical news and the professional medical analysis. The site covers breaking medical stories and topics widely reported in the consumer media.

Nature Online, homepage of the international weekly journal of science, offers a daily news service, job listings and access to research papers before publication.

NewScientist.com, Web site of the magazine of the same name published in the United Kingdom, offers the latest science and technology news from around the world gathered by a network of correspondents in seven editorial offices. Check out the extensive list of "best science sites on the Web."

The New England Journal of Medicine Online offers NEJM subscribers access to full text articles plus several additional features. All users have access to parts of the journal, including abstracts of scientific articles.

New York Times: Health gathers together stories from the print edition and much more, updated every 10 minutes with the option to search in 12 health subcategories. The Times also posts a special section on science. Registration is required, but it is free.

Reuters Health Information provides summaries of breaking health care and medical news from around the world for both professionals and consumers.

Science News Online provides additional, bibliographic material for articles in Science News, a weekly publication that covers major research in all fields of science.