For several decades already, the traditional mode of reception, production and mediation of art, heritage and cultural artefacts has been challenged by digital media and communication technologies. Starting from local experiences of cultural audiences and institutions, Under Construction: Culture in a Network Society considers the contexts and consequences of the digital transformation of cultural reception, production and mediation. With its direct engagement with media theory and cultural sociology, this cahier will be of interest to scholars, students and professionals in the fields of new media and culture. The articles contribute to the broader discussion on the meaning of art, heritage and cultural artefacts in online and mobile mediascapes.