A culture of co–creation is emerging in art, design, architecture (Armstrong and Stojmirovic, 2011), music, video, literature and other productive fields like manufacturing, urban agriculture and biotech. Many of the tools of production and distribution used by professionals are available to the broader public. Publics are becoming more and more productive (Jenkins, 1992; Arvidsson, 2011). The rise of these phenomena suggests that a new modality of value creation is affirming itself in the information economy (Arvidsson and Colleoni, 2012). This emerging co–creation culture and a new theory of value also affect the radiophonic medium. The combination between radio and social networks sites (SNS) brought to completion a long historical proce...