Communication processes are characterized today by the growing influence of new media. But what changes in the way we communicate, interact, work and study with the introduction of new media? The book answers this question by using as reference a new discipline: psychology of new media (cyberpsychology). Point of contact between human sciences and new technologies, cyberpsychology focuses on the understanding, anticipation and activation of the processes of individual and social change arising from the interaction with digital media. Proposed now in a new revised and updated edition, the volume integrates within a unified theoretical model – the theory of situated inter-action – the most recent advancements in cognitive science, neuroscience, communication sciences and cultural psychology. There are four conceptual tools that characterize the approach, namely intention, affordance, presence and social presence. A new medium becomes an affordance, or an opportunity for its users, when it is able to offer a higher level of presence and social presence, defined as the ability to implement one’s intentions (presence) and to understand those of others (social presence). Through this model, the volume analyzes and interprets the events that are characterizing the digital media experience – from the birth of virtual communities, social networks and Web 2.0 – helping the reader to answer a very practical question: how to create a medium capable of effectively supporting the intentions of its users.