This study presents an exploration into facilitation practices of teacher professional development networks. Stimulating networked learning amongst teachers is a powerful way of creating an informal practice-based learning space driven by teacher needs. As such, it presents an additional channel (besides more formal traditional professional development initiatives) for teacher education and sustained professional development. This study describes a set of challenges facilitators of teacher networks encounter and presents ways to overcome them. Successful facilitation is the cornerstone for vital teacher networks in which they share knowledge and develop their practice. © 2011 International Council for Educational Media.