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Dron, J. & Anderson, T. (2007). Collectives, Networks and Groups in Social Software for E-Learning. In T. Bastiaens & S. Carliner (Eds.), Proceedings of E-Learn 2007--World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education (pp. 2460-2467). Quebec City, Canada: Association for the Advancement of Computing in Education (AACE).