Masters thesis on social software (e.g., blogs, wikis, social bookmarking services)...and how they support learning, knowledge management, and communities of practice.
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D. Millen, J. Feinberg, and B. Kerr. CHI '06: Proceedings of the SIGCHI conference on Human Factors in computing systems, page 111--120. New York, NY, USA, ACM Press, (2006)