The diagnosis and treatment of pediatric cancer can be associated with profound psychosocial changes in the life of young patients. Although nurses, physicians, and other health care professionals are important sources of support, psychosocial support is also available through parents, schools, and peers. This article presents a review of the literature on how parents, schools, and peers affect the coping and adjustment of young patients with cancer and critically reviews interventions directed at improving functioning in these areas. Special attention is paid to recent interventions that exploit technology such as video games, CD-ROMs, and the Internet to provide creative new forms of support for patients in pediatric oncology. Existing research on both technological and interpersonal forms of intervention and support shows promising results, and suggestions for further study are provided.