This article attempts to respond to the need to understand the uses of videos for learning in the context of the emergence of xMOOC in all their complexity. Considering the dispersion of research conducted on this thematic, a framework of analysis is built to apprehend the dimensions which can intervene in the emergence of learning activities. This framework bears four intentions: to better exploit the contributions of previous research, promote exchanges between researchers, stimulate further the formulation of common research paths and highlight the need to develop new approaches for instructional design of xMOOC.