American Heart Association

The American Heart Association is the nation’s oldest and largest voluntary organization dedicated to fighting heart disease and stroke.

http://www.heart.org/HEARTORG/

Web MD

providing credible information, supportive communities, and in-depth reference material about health subjects that matter to you.

http://www.webmd.com/heart-disease/default.htm

U.S. National Library of Medicine

The National Library of Medicine provides free access to vocabulary standards, applications, and related tools that can be used to meet US EHR certification criteria and to achieve Meaningful Use of EHRs.

http://www.nlm.nih.gov/hinfo.html

eMedicine Health

eMedicineHealth.com is a consumer health information site that was launched in May 2003 by the doctors of eMedicine.com (now Medscape Reference).

http://www.emedicinehealth.com/heart-health/center.htm