1. Aronson, E., Blaney, N., Stephan, G., Silkes, J., & Snapp, M. (1978). The jigsaw classroom. Beverly Hills, CA: Sage Publications.
2. Begole, J. B., Tang, J., Smith, R., & Yankelovich, N. (2002). Work rhythms: Analyzing visualizations of awareness histories of distributed groups. In E. F. Churchchill, J. McCarthy, C. Neuwirth, & T. Rodden (Eds.), Proceedings of the 2002 ACM conference on Computer-supported cooperative work (pp. 334–343). New York: ACM Press.
3. Borning, A., & Travers, M. (1991). Two approaches to casual interaction over computer and video networks. In S. P. Robertson, G. M. Olson, & J. S. Ohlson (Eds.), Proceedings of the SIGCHI conference on Human factors in computing systems: Reaching through technology (pp. 13–19). New York: ACM Press.
4. Bradner, E., Kellogg, W., Erickson, T. (1999). The adoption and use of “Babble”: A field study of chat in the workplace. In S. Bødker, M. Kyng, & K. Schmidt (Eds.), Proceedings of the 6th European conference on Computer supported cooperative work (ECSCW’ 99) (pp. 139–158). Dordrecht, The Netherlands: Kluwer.
5. Connolly, T., Jessup, L. M., & Valacich, J. S. (1990). Effects of anonymity and evaluative tone on idea generation in computer-mediated groups. Management Science, 36, 97–120.