The American Lung Association, along with its medical branch, the American Thoracic Society, provides programs of education, community service, and advocacy. Some of the topics available include asthma, tobacco control, emphysema, asbestos, carbon monoxide, radon, and ozone.

The March of Dimes tries to improve the health of babies by preventing birth defects, premature birth, and early death. March of Dimes supports research, community services, education, and advocacy to save babies' lives. The organization's Web site has information on premature birth, birth defects, birth defects testing, pregnancy, and prenatal care. You can sign up to get a free newsletter and also explore Understanding Your Newborn: An Interactive Program for New Parents.

The U.S. National Heart, Lung, and Blood Institute (NHLBI) information center offers information and publications about preventing and treating heart, lung, and blood diseases.