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Is Wikipedia Growing a Longer Tail?. In: ACM 2009 International Conference on Supporting Group Work. Sanibel Island, FL: Association for Computing Machinery; 2009.
A Jury of Your Peers: Quality, Experience and Ownership in Wikipedia. In: The International Symposium on Wiki's and Open Collaboration. Orlando, FL; 2009.
Learning to Recognize Valuable Tags. In: International Conference on Intelligent User Interfaces. Sanibel Island, FL: ACM; 2009.
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Talk Amongst Yourselves: Inviting Users to Participate in Online Conversations.. In: International Conference on Intelligent User Interfaces . Honolulu, Hawaii: ACM; 2007. p. 62-71. (Proceedings of the 12th international conference on Intelligent user interfaces).
Using Intelligent Task Routing and Contribution Review to Help Communities Build Artifacts of Lasting Value. In: ACM SIGCHI Conference on Human Factors in Computing Systems. Montreal, Quebec, Canada: ACM; 2006. p. 1037-46.
How Oversight Improves Member-Maintained Communities. In: ACM SIGCHI Conference on Human Factors in Computing Systems. Portland OR: ACM; 2005.