Professional learning is an important process in enabling teachers to update their pedagogical knowledge and practices. The use of online technologies to support professional learning has a number of benefits in terms of flexibility and scalability. However, it is not clear how well the approach impacts on teachers' classroom practices. This article outlines a research study conducted on behalf of a state-based Department of Education to evaluate the transfer of professional learning from online modules on the integration of ICT to the practices of K-12 classroom teachers. (Contains 1 table.)