Pediatric Oncology Resource Center
Edited by Patty Feist-Mack, parent of a long-term survivor of childhood leukemia, this site contains accurate, comprehensive, and up-to-date information on all aspects of childhood cancer. It provides links to many of the best pediatric oncology sites on the Internet.

American Childhood Cancer Organization
Founded in 1970, the ACCO (used to be called Candlelighters Childhood Cancer Foundation) has more than 50,000 members. Some of the free services provided by the organization are a toll-free information hotline, various books to help families of children with cancer, local support group chapters, and national advocacy.

SuperSibs!
SuperSibs' mission is to support, honor, and recognize brothers and sisters of children with cancer. They provide numerous support and advocacy services free of charge.