I have found great support from the FORCE community online.
FORCE is the only national nonprofit organization devoted to hereditary breast and ovarian cancer. Their mission includes support, education, advocacy, awareness, and research specific to hereditary breast and ovarian cancer. Their programs serve anyone with a BRCA mutation or a family history of cancer.
Bright Pink is another organization offering support to young high risk women.
Bright Pink is the only national non-profit organization focusing on the risk reduction and early detection of breast and ovarian cancer in young women while providing support for high-risk individuals.