- American Board of Medical Specialties
- American Medical Association
- HMO Arbitration horror stories from the Foundation for Taxpayer and Consumer Rights
- Medscape
- Medline
- The National Institutes of Health
- The New England Journal of Medicine
- Journal of the American Medical Association
- NC Medical Board - find information on disciplinary actions against doctors in NC
- Registered Nurse Experts, Inc.
- Reuters Health Information
- QuestionableDoctors.org is a site that grew out of a study by Public Citizen, a national non-profit public interest group founded by Ralph Nader, which includes a comprehensive, publicly available databank that contains information on doctors who have been disciplined by state medical boards and federal agencies in the past ten years
Members