Discovery
School Science Fair Central http://school.discovery.com/sciencefaircentral/
Science
Fair Spot http:/www.homeworkspot.com/sciencefair/
National
Institute of Health http://www.nih.gov
National
Library of Medicine http://www.nim.nih.gov
Mayo
Clinic http://www.mayoclinic.com
Web
MD http://www.webmd.com
Center
for Disease Control http://www.cdc.gov