http://www.niams.nih.gov/hi/topics/lupus/lupusguide/chp2.htm 
National Institute of Health site on lupus

http://www.arthritis.org/conditions/DiseaseCenter/lupus.asp
Arthritis Foundation information for patients

http://www.lupusresearch.org
Alliance for Lupus research home page

http://www.lupus.org
Lupus Foundation of America patient website

http://www.rheumatology.org/public/factsheets/sle.asp
American College of Rheumatology fact-sheet on lupus