In the current economic environment, to learn became the best means, for an organization, to be competitive in preserving knowledge and experiments of each collaborator and each team. This leads companies to reconsider their knowledge sharing, to anticipate their members' training, while managing the changes induced by new practices. Such companies are called learning organizations because they build structures and strategies in order to increase and to maximize the organizational learning. In this paper we present why and how we associated on the one hand knowledge and learning engineering methods and on the other hand Semantic Web and Web2.0 technologies to develop a collaborative learning environment E-MEMORAe2.0 for organizational learning support.