The American Society for Microbiology
The oldest and largest life science membership organization in the world.
http://www.asm.org

Centers For Disease Control & Prevention
CDC serves as the national focus for developing and applying disease prevention and control, environmental health, and health promotion and education activities designed to improve the health of the people of the United States.
http://www.cdc.gov

Lab Tests Online
A public online resource on clinical lab testing from laboratory professionals.
http://labtestsonline.org

AACC (American Association for Clinical Chemistry)
An international scientific/medical society of clinical laboratory professionals, physicians, research scientists and other individuals involved with clinical chemistry and other clinical laboratory science-related disciplines.
http://www.aacc.org

MicrobeWorld
An American Society for Microbiology website.
http://www.microbeworld.org

Medical Lab Observer
Periodical covering all aspects of the diagnostic laboratory.
http://www.mlo-online.com