Diabetes:

http://www.diabetes.org
http://www.minemed.com
http://www.eatright.org

Hypertension Cholesterol:

http://www.americanheart.org/

Seniors:

Medicare Part D - Tips and Tools
CareLink - Senior and Elder Care/

Arthritis:

http://www.arthritis.org/
http://www.niams.nih.gov/bone/
http://www.surgeongeneral.gov/