American Cancer Society
1-800-acs (24 hours a day)
http://www.cancer.org

A Cancer Journal for Clinicians Online
http://caonline.amcancersoc.org/

Clinical Trials
http://www.clinicaltrials.gov/

Fertile Hope
www.fertilehope.org

I'm Too Young For This
http://imtooyoungforthis.org

National Cancer Institute – Cancer Information Service
1-800-4-CANCER (English or Spanish) 
1-800-332-8615 (for deaf callers with TTY equipment)
http://www.nci.nih.gov

The Leukemia & Lymphoma Society
www.leukemia-lymphoma.org

The Cancer Letter
www.cancerletter.com

The National Coalition for Cancer Survivorship (formerly Cancer Advocacy)
www.canceradvocacy.org

U. S. Department of Health and Human Services Healthfinder
www.healthfinder.gov