International Society of Hypertension

American Society of Hypertension (ASH)

World Hypertension League

American College of Cardiology (ACC)

American Heart Association (AHA)

American Heart Association Council for High Blood Pressure Research

American Society of Nephrology (ASN)

Canadian Hypertension Society

European Society of Cardiology

Hypertension Network

International Society of Hypertension in Blacks

lifeclinic.com - Special focus: High Blood Pressure

Medscape

Medweb

National Alliance To Raise Hypertension Awareness

National Heart, Lung, and Blood Institute -- National Institutes of Health

PharmInfoNet's Hypertension Information Center
An extensive compilation of links to articles, case studies, discussion threads, meeting highlights, and FAQs related to hypertension and its treatment