www.KidsHealth.org
Nemours Children’s Hospital in Wilmington, DE runs a very large website with excellent information about children's health and diseases. It is a great resource for parents and children. Teens can use this website for school research projects as well!
www.CHOP.edu/vaccine
This is the website for Children's Hospital of Philadelphia's Vaccine Education Center.
It provides comprehensive information about vaccine saftey and the diseases they prevent.
www.HealthyChildren.org
A great site from the American Academy of Pediatrics
www.cpsc.gov
A very complete toy safety website