Review Article 47 Granger, G. A. et al. 2002. Factors contributing to teachers’ successful implementation of IT. Journal of Computer Assisted Learning, 18 (4), 480-488. In this article, an analysis of data from qualitative case studies of four Canadian schools illustrates factors that facilitate successful ICT implementation. Findings of the study suggest that informal ICT education, such as ‘just-in-time’ learning, is most influential. Furthermore, supportive and collaborative relationships among teachers, a commitment to pedagogically sound implementation of new technologies, and principals who encourage teachers to engage in their own learning are viewed as highly useful factors. Keywords: Case study; Informal ICT education; Collaboration; Constructivist, ICT-use, Innovation; Pedagogy; Primary/ Elementary education; Secondary education; Canada.