Critical Friends Groups (CFG) is a tool that has been used for teacher learning for many years now, and are now beginning to make their way online. In this article the experience and tools of a four-year-old CFG online is reported: the group had been focusing on the investigation of how technology could improve the working of other CFGs online, through the methods normally employed by CFG themselves, establishing that there was a good influence of the CFG, working not only towards the results achieved but also related to the relationships developed between participants.