Honestly, I have never taken into account Facebook as a potential tool for teaching and learning. I would never recommend to be friend with your students, and vice versa would never expect that students' would be friends with their teachers. Simply put, there are too many private aspects that it is good to keep separated between students and teachers. With my great surprise, I instead discovered a rich literature on the topic: it is at least 10 years that there exist empirical observations on the adoption and effects of Facebook in teaching and learning activities [1]. In particular, the typical way of working is to create groups for a course: with the right settings, group members are only students, possibly together with teachers, without the need of being friends on Facebook [2]. This indeed is a reasonable approach, that alleviates a lot of the doubts related to privacy, both for the teacher and the students: in fact, a group creates a kind of private island on Facebook where