How do women who seek psychosocial support on the Internet by participating in cancer peer support groups respond to the process of coping with cancer? The current study examines whether older women with cancer have different perceptions about and are influenced to a different extent by online peer support than younger women. The study also explores age-based variations in outlook on coping with cancer as a result of using online support. Separate multivariate regression models estimated the effects of covariates on (1) positive coping affect (PCA) (2) positive coping affect-hopeful (PCA-H), and (3) positive coping affect-proud (PCA-P). A stratified analysis examined variations within age-based subsamples (≥51 and ≤50). Positive coping affect includes feeling proud about coping with cancer from a position of strength and empowerment rather than being a victim and being hopeful for a healthier future postdiagnosis. Online support was found to increase PCA significantly. This finding is consistent across age groups but was more pronounced for older patients. The only exception is that younger women perceive more benefit from using online support in terms of feeling proud. As severity of the symptoms increased, though the younger women increased the amount of time they were online, the older women increased the number of groups they participated in. The study concludes that the Internet might be particularly helpful for older adults who feel helpless to cope with cancer in old age. Online peer support services may help improve the patients' outlook on fighting with cancer and help them to feel more in control of their health.