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Lopez, B. & Lin, L. (2009). First things first: Technologies to facilitate group formation in online problem-based learning. In I. Gibson, R. Weber, K. McFerrin, R. Carlsen & D. Willis (Eds.), Proceedings of SITE 2009--Society for Information Technology & Teacher Education International Conference (pp. 1981-1989). Charleston, SC, USA: Association for the Advancement of Computing in Education (AACE).