This book takes place on the Computer Supported Collaborative Learning domain. In this field, this study aimed to create new technologies of communication for Virtual learning communities (VLCs). Particularly, our research issue is to analyze learning conversations taking place in VLCs in order to provide mechanisms to facilitate the emergence of these interactions among the users of Forum-type tools (FTTs). We have identified in FTTs several anomalies that can discourage the emergence of learning conversations taking place in FTTs: "interactional incongruence", "convergence...