Ling, Kimberly, et al. "Using social psychology to motivate contributions to online communities." Journal of Computer‐Mediated Communication 10.4 (2005): 00-00.

This article examines the under-contribution issue in online communities through the lens of social psychology, specifically social loafing and goal-setting theories. Through four field experiments within an online movie recommender community, it tests design principles aimed at boosting member contributions. Results showed that reminding members of their uniqueness and setting specific, challenging goals increased contributions. Interestingly, group goals led to higher contributions than individual goals in one experiment, challenging some theoretical predictions. The article concludes with insights on integrating social science theories into online community design.