Social MOOC (sMOOC) base their design on a practical and social teaching and learning process. From this perspective, the experience of the course “Communication and mobile learning,” developed within the framework of the European Project ECO MOOC (Elearning, Communication and Open-Data: Massive Mobile, Ubiquitous, and Open Learning), is presented below. This experience highlights the value of the R-elational Factor and the edu-communicative interactions that are established within a learning community in mobile and ubiquitous digital environments. Through the dialogical collaboration of the participants, knowledge is generated from a reflective and critical plane, and in which relationships become the epicenter of the process.