J. Muramatsu and Ackerman, M. S., “Computing, social activity, and entertainment: A field study of a game MUD”, Computer Supported Cooperative Work (CSCW), vol. 7, pp. 87–122, 1998.

M. S. Ackerman, Swenson, A., Cotterill, S., and DeMaagd, K., “I-DIAG: from community discussion to knowledge distillation”, in Communities and Technologies (C&T 2003), 2003, pp. 307–325.

J. Muramatsu, Social regulation of online multiplayer games. University of California, Irvine, PhD Thesis, 2004.

D. L. Hansen, Ackerman, M. S., Resnick, P. J., and Munson, S., “Virtual community maintenance with a collaborative repository”, in Proceedings of the American Society for Information Science and Technology Annual Meeting (ASIST'07), 2007, pp. 1–20.

J. Zhang, Ackerman, M. S., and Adamic, L. A., “Expertise networks in online communities: structure and algorithms”, in Proceedings of the 16th international conference on World Wide Web (WWW'07), 2007, pp. 221–230.

J. Zhang, Ackerman, M. S., and Adamic, L. A., “CommunityNetSimulator: Using simulations to study online community networks”, in Communities and Technologies 2007, 2007, pp. 295–321.

L. A. Adamic, Zhang, J., Bakshy, E., and Ackerman, M. S., “Knowledge Sharing and Yahoo Answers: Everyone Knows Something”, in Proceedings of the 17th International Conference on World Wide Web, 2008.

J. Yang, Adamic, L. A., and Ackerman, M. S., “Crowdsourcing and Knowledge Sharing: Strategic User Behavior on Taskcn”, in Proceedings of the 9th ACM Conference on Electronic Commerce, New York, NY, USA, 2008, pp. 246-255.

J. Yang, Adamic, L. A., and Ackerman, M. S., “Competing to Share Expertise: The Taskcn Knowledge Sharing Community.”, in ICWSM, 2008.

K. K. Nam and Ackerman, M. S., “Arkose: Reusing Informal Information in Online Communities”, in ACM Group 2007 Conference, 2007.