Genetics Home Reference
- Free from the National Library of Medicine and National Institutes of Health. Genetic information written at the consumer level. Links to information in the OMIM.Online Mendelian Inheritance in Man (OMIM)
- Free from Johns Hopkins University. Excellent source of information on genetic disorders.Physician Data Query (PDQ)
- Free database from the National Cancer Institute. Contains in-depth information on various types of cancer. Contains information written at both the clinician and the patient levels.