Members of The TeleLearning Network of Centres of Excellence, funded in September 1995 through the Social Science Research Council of Canada, will present the social structures of interconnected learning communities growing out of well-established partnerships, learning activities, and social interactions involving high school learners, student teachers, teachers, and teacher educators. Applied to the education of educators, the notion of learning community stresses the importance that the entire communication process (between students, between schools, between undergraduates already linked to different schools, between undergraduates and teachers or university supervisors and professors, etc.) constitute a system dominated by complementary, knowledge building and common sharing, creating therefore an environment imbued with continuous transformation. The research question of "How can telelearning tools contribute to the creation of functional and collaborative communities of practice?" is being investigated. The websites TACT and Virtual U support these collaborative activities.