It has been a decade now that research on the collaborative economy and colla- borative consumption (CC) has thrived. Tremendous academic research has been conducted into this specific concept. This paper re-evaluates the conceptual framework proposed almost half a decade ago about the conceptual foundations, frontiers and limits of the concept of collaborative consumption. The paper provides a revised definition and assesses to what extent the scope and limits in contrast to other forms of exchange still hold now despite current challenges.

Social Innovation is an emerging phenomenon where groups of people are connected to face mutual challenges. Social innovation is arriving into society through internet based platforms and social networking that allow people with the same objectives to get in touch.

Social innovation formats are diverse, and they are based on the exchange of things and services, the shared use of resources, knowledge transmission, and reliability related to collective reputation.

Social innovation is consolidating because it is based on changes in users' values, in the demand for services, and in the way services are consumed. Phenomena like Airbnb, Uber or Goteo are the tip of the iceberg of Social Innovation in Spain, a process that is just beginning.