- World Hypertension League
- American Heart Association Council for High Blood Pressure Research
- American Society of Hypertension (ASH)
- 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
