Farzan, Rosta, et al. "Increasing commitment to online communities by designing for social presence." Proceedings of the ACM 2011 conference on Computer supported cooperative work. 2011.

This study explores how different design strategies for online sites within a Facebook game application can enhance member commitment and retention. Through two experiments, it finds that increasing commitment and retention can be achieved by either visually highlighting individual members or by emphasizing the community as a whole, each influencing commitment through distinct routes.