Critical Friends Groups (CFGs) are a form professional learning community that has been used for teacher learning in K-12 environments for many years. In order to foster community and learning amongst distributed participants, CFGs are beginning to make their way online. This article describes the experience of a four-year old online CFG whose goal was to explore how different technologies can support the work of a virtual CFG by being an online CFG. This article describes the technologies used to host this CFG, the attributes of those technologies to support this collaborative work and the lessons learned from the group's experience.