NIDDK 
http://www.niddk.nih.gov

Cardiology
American Heart Association
http://www.amhrt.org

Cardiology Patient Information
http://www.mednet.ucla.edu

Rheumatology
American College of Rheumatology
http://www.rheumatology.org

Rheumatology
http://www.med.jhu.edu/deptmed/rheu.html

Endocrinology
http://www.endocrineindia.com

Health Organisations and Personnel
World Health Organisation (WHO)
http://www.who.int

Health on the Net foundation 
http://www.hon.ch

Prof. S I S Rattan, University of Aarhus, Denmark
http://www.imsb.au.dk/~rattan

Important Medical Journals
British Medical Journal
http://www.bmj.com

Lancet
http://www.thelancet.com

New England Journal of Medicine
http://www.nejm.org