This is a randomized, controlled, single-center research study of an online intervention with peer group support to reduce stress in nurses. All participants will be assigned to the intervention or control groups by random number allocation. The duration of the intervention is 6 weeks; follow-up is at 6 and 24 weeks; the duration of the study is 6 months (24 weeks). Total individual participant time commitment will depend on particular intervention or control group assignment. Both intervention and control groups will be requested to complete a set of questionnaires at weeks 0, 6, and 24. The questionnaires will take an estimated 45 minutes to complete.