American medical websites

PubMed is an openly accessible, free database which primarily includes the MEDLINE database of references and abstracts on life sciences and biomedical topics. The United States National Library of Medicine (NLM) at the National Institutes of Health maintains the database as part of the Entrez system of information retrieval.

eMedicine is an online clinical medical knowledge base founded in 1996 by doctors Scott Plantz and Jonathan Adler, and computer engineers Joanne Berezin and Jeffrey Berezin. The eMedicine website consists of approximately 6,800 medical topic review articles, each of which is associated with a clinical subspecialty "textbook". The knowledge base includes over 25,000 clinically multimedia files.

WebMD is an American corporation which publishes online news and information about human health and well-being. The WebMD website also includes information about drugs and is an important healthcare information website and the most popular consumer-oriented health site.

Drugs.com is an online pharmaceutical encyclopedia that provides drug information for consumers and healthcare professionals, primarily in the United States. It self-describes its information as "accurate and independent" yet limited to being "for educational purposes only and is not intended for medical advice, diagnosis or treatment."

Medscape is a website providing access to medical information for clinicians and medical scientists; the organization also provides continuing education for physicians and other health professionals. It references medical journal articles, Continuing Medical Education (CME), a version of the National Library of Medicine's MEDLINE database, medical news, and drug information (Medscape Drug Reference, or MDR). At one time Medscape published seven electronic peer reviewed journals.

thumb|right DailyMed is a website operated by the U.S. National Library of Medicine (NLM) to publish up-to-date and accurate drug labels (also called a "package insert") to health care providers and the general public. The contents of DailyMed is provided and updated daily by the U.S. Food and Drug Administration (FDA). The FDA in turn collects this information from the pharmaceutical industry.

Quackwatch is a United States-based website focused on promoting consumer protection and providing information about health related frauds, myths, fads, fallacies, and misconduct. It primarily targets alternative medicine, questionable health claims, and practices it considers pseudoscience. It was founded in 1996 by Stephen Barrett, a retired psychiatrist and former co-chair of the Committee for Skeptical Inquiry. Initially operated under the nonprofit Quackwatch, Inc., it became part of the Center for Inquiry (CFI) in 2020. Its content is now maintained by CFI's Office of Consumer Protection

DermAtlas is an open-access website devoted to dermatology that is hosted by Johns Hopkins University's Bernard A. Cohen and Christoph U. Lehmann. Its goal is to build a large-high-quality dermatologic atlas, a database of images of skin conditions, and it encourages its users to submit their dermatology images and links for inclusion.

website covering issues in science and medicine, focusing on quackery

thumb|right|Stephen Heywood's profile on PatientsLikeMe PatientsLikeMe (PLM) is an integrated community, health management, and real-world data platform. The platform currently has over 830,000 members who are dealing with more than 2,900 conditions, such as ALS, MS, and epilepsy. Data generated by patients themselves are collected and quantified with the goal of providing an environment for peer support and learning. These data capture the influences of different lifestyle choices, socio-demographics, conditions and treatments on a person's health.