Morbidity and mortality (M&M) conferences have evolved from focusing on individual clinicians to system errors. In this study, researchers observed M&M conferences, interviewed leadership, and reviewed M&M policies at three Canadian hospitals to describe how organizational learning is enacted. Although the hospitals differed in policies and processes, all three acknowledged the importance of recognizing organizational trends and learning from errors at both the individual and system levels. PSNet offers an online version of M&M conferences with an emphasis on systems learning.