American Heart Association
Click "News" for a thorough list of Web links concerning what's new in the field.
http://www.americanheart.org/

CenterWatch/Clinical Trials Listing Service
Provides information about current clinical research and new drug therapies.
http://www.centerwatch.com/

United States National Library of Medicine
Extensive information on medical and health related issues.
http://www.nlm.nih.gov/