About.com Breast Cancer: This site provides expert advice, community support, and medically-reviewed information on breast cancer diagnosis, prevention, treatments and daily living.

American Cancer Society: This site provides general cancer information and programs for patients and families, including the publication “What's New in Breast Cancer Research and Treatment?”

BreastCancer.org: This site is run by a nonprofit organization dedicated to providing information and community to those who have been touched by breast cancer.

Cancer.Net: This site is sponsored by the American Society of Clinical Oncology and has a wealth of information for patients.

Healthline: This site's Understanding Breast Cancer section counts interactive animations among its helpful information.

TrialCheck: This site is put together by the Coalition of Cancer Cooperative Groups and has excellent information about possible clinical trials.