The ubiquity of the Internet and mobile devices allow a new paradigm, in which citizens monitor their environment through such devices collecting data (audio, video, location, etc.) in a conscious and / or unconscious way. In this context, electronic services play a key role in the exploitation of all this information and meta information.
Technologies such as location linked to social networks and its massive adoption opens new doors to services aimed at improving the quality of life in cities. Work in sporadic and distributed networks is also a field with an interesting projection in this sense.
The immense amount of all kinds of information shared forces to offer new functionalities in the field of the semantic web facilitating the personalization and recommendation of contents. The applications are multiple: from the most obvious in services added in social networks, to others with a more direct impact on the education and dissemination of knowledge in museums or other educational facilities.
On the other hand, the massive use of e-learning platforms at different levels of education has marked a turning point in teaching in different aspects and is an unbeatable source of information about students, their customs, their different ways of learning and interacting with each other, with teachers and with educational content.