Good places to start

• Breast Cancer (American Cancer Society)
• Breast Cancer (Cancer.Net)
• Breast Cancer (MedlinePlus)
• Breast Cancer (US National Cancer Institute)
• Breast Cancer Navigation Map (Canadian Breast Cancer Foundation)
• Breast Cancer, Now What?
• What is Breast Cancer? (Canadian Cancer Society)

More breast cancer websites

• Breast Cancer 101 (Susan G. Komen for the Cure) - video
• Breastcancer.org (US)
• Breast Cancer (University Health Network)
• Canadian Breast Cancer Foundation BC/Yukon
• Canadian Breast Cancer Network
• Cedars MUHC Breast Cancer Guide (McGill University Health Centre)
• Johns Hopkins Avon Foundation Breast Center (US)
• Living Beyond Breast Cancer (US)
• Ontario Breast Cancer Exchange Partnership
• Susan Love Research Foundation (US)

Advanced breast cancer websites

• AdvancedBC.org

Inflammatory breast cancer websites

• Breast-Inflammatory Cancer (Cancer.Net)

Triple-negative breast cancer websites

• Triple-negative breast cancer (Living Beyond Breast Cancer, US)

Male breast cancer websites

• Breast Cancer-Male (Cancer.Net)
• Breast Cancer in Men (American Cancer Society)
• Male Breast Cancer (Breastcancer.org)
• Male Breast Cancer (MedlinePlus)
• Male Breast Cancer (US National Cancer Institute)
• Men with Breast Cancer (Canadian Breast Cancer Network)

Breast reconstruction websites

• Breast Reconstruction (Vancouver Coastal Health)
• Breast Reconstruction after Mastectomy (American Cancer Society)

Genetics and biology websites

• Biology of the Mammary Gland
• Genetics of Breast Cancer (Cancer.Net)
• Hereditary Breast and Ovarian Cancer Society of Alberta

Prevention and screening websites

• Breast Self Examination (BSE) (Thunder Bay Breast Health Coalition)
• Breast Self-Awareness (Susan G. Komen for the Cure)
• Cancer Care Ontario Breast Screening
• Don't Forget to Check (Canadian Breast Cancer Foundation)
• Program on Breast Cancer and Environmental Risk Factors (Cornell University)

Support websites

• Breast Cancer Action Nova Scotia
• Breast Cancer Action Ottawa
• Breast Cancer, Now What?
• Caring Voices
• Inflammatory Breast Cancer Research Foundation
• Inflammatory Breast Cancer Support Group
• Willow Breast Cancer Support Canada
• Young Survival Coalition

Decision tools

• Treatment Decision Tools (American Cancer Society)
• Information on Mammography for Women Aged 40 and Older: A Decision Aid for Breast Cancer Screening in Canada (Public Health Agency of Canada)
• Surgery Choices for Women with Early-Stage Breast Cancer (US National Cancer Institute)

Practice guidelines and treatment summaries

• NCCN Guidelines for Patients: Breast Cancer (US National Comprehensive Cancer Network)
• NCCN Treatment Summaries: Breast Cancer (US National Comprehensive Cancer Network)
• Questions and Answers on Breast Cancer - A Guide for Women and their Physicians (scroll down the page)

Clinical trials

• National Surgical Adjuvant Breast and Bowel Project (US)

Books and pamphlets

• Guide to Breast Cancer (Cancer.Net)

Journal articles

• Abreast in the West
• Artemis - Johns Hopkins Breast Center e-journal