The purpose of this study is to examine the feasibility, process, and outcomes of an innovative online intervention tailored to the unique needs of young women and their partners. The primary goal is to improve partners' relationship functioning and capacity to work together as a team in relation to the illness. The secondary goal is to combat feelings of isolation by creating a community of similarly affected couples. The intervention will be delivered via a professionally moderated, password-protected website and entail: Information relevant to young couples with breast cancer; structured, interactive learning modules; and a discussion board. The online modality is particularly suited to the younger demographic targeted by this project because of its familiarity, comfort, convenience, and flexibility.