• American Lung Association
  • Asthma Links/American Lung Association
  • American Medical Association
  • Annals of Allergy, Asthma & Immunology Online version of an allergy medical journal intended for physicians and other health care professionals.
  • JAMA Asthma Information Center A significant source of information about asthma intended mostly for health care professionals, but with some good patient information as well.
  • Medical Matrix - Guide to Internet Clinical Medicine Resources
  • MEDLINE Search the National Library of Medicine's medical literature database at no charge via PubMed
  • Grateful Med Another search interface for NLM's databases
  • NewsFile: Health News Online
  • Physicians Online
  • Breathe America
  • AllHealthNet Search Engine for Health