Abstract
In this paper we discuss and propose theoretical elements considered relevant to open and develop a theoretical-empiric line of research on the public opinion (PO) in Chile today. We suggest that there are different conceptions, practices and actors involved in “making PO”, recognizing five areas in this field: media system, subaltern counter-publics, social digital networks, survey industry and elites. In each of these areas it is necessary to inquire into their specific actors, practices and senses mobilized in the process of production of PO.The paper focuses on discussing the development of the main current comprehensive modalities of the PO and presenting a conceptual proposal for each of the five areas described above, as well as a brief characterization of these areas in Chile. We consider these definitions as a basic starting point to habilitate a line of research that allows us to design a device for monitoring PO. The device will be hosted at the PO observatory and it will contribute to activate networks of knowledge and action in the public sphere by providing periodically with public information regarding issues of general interest to the actors involved in the production of PO.