American Cancer Society

http://www.cancer.org/

Provides support for survivors through an online community, as well as tips on how to be healthy after treatment.

The National Children's Cancer Society

https://www.thenccs.org/

The National Children’s Cancer Society (NCCS) ensures that childhood cancer survivors and their families have access to survivorship information.

CureSearch Children’s Oncology Group (COG)

http://www.curesearch.org/

You can access COG’s long-term follow-up guidelines for survivors of childhood, adolescent, and young adult cancers on this site.