Centers for Disease Control and Prevention
Centers for Disease Control: Kids' Quest: Mobility: Wheelchair Athletes?
Complete a WebQuest that will help you answer this question: Can a kid in a wheelchair be an athlete?
Other
The National Organization for Rare Disorders
This organization specializes in providing assistance for those with rare diseases. This part of the site lists rare diseases in alphabetical order. Each disease is defined and organizations that specialize in the disease are listed.