NDDIC: Hirschsprung's Disease
Comprehensive information on the disorder, from the National Digestive Diseases Information Clearinghouse (U.S.).

Pull-Thru Network: Hirschsprung's Disease
Information on the disorder, plus links to information and resources. Especially helpful for families affected by ostomy.

International Foundation for Functional Gastrointestinal Dis
Brief description of Hirschsprung's disease in children, with links to resources and support for all bowel and gastrointestinal disorders.

NORD: Hirschsprung's Disease
Brief definition of the disorder, with resource links, from the National Organization for Rare Disorders (U.S.).