This study investigated an on-line cancer support community emphasizing communication concerns important to the community administrators. The researcher conducted an on-line survey of participants (N = 103) focused on their on-line communication activities and social support. The results indicate a modest negative correlation between emotional support received on-line and perceived stress, differences in emotional support scores based on perceptions of disadvantages of on-line support groups, and different motives for using the community between people with cancer and family members. The study also describes suggestions based on the results that were made to community administrators and which could be used by other on-line support communities.