In recent years, learning management systems (LMS) have become very popular in almost all traditional universities, generating a new learning strategy approach, mixing elements from both traditional and online learning: the blended learning or b-learning. How these new environments influence teaching activities and learning processes are the main topic of this paper. References about this subject are also analyzed, enriching them with the expertise and opinion of authors and other teachers. Finally, the students' point of view is presented, through the results of a survey of Polytechnic School students at Universidad Europea de Madrid.