This project aims to identify historical indicators of the formation of social networks from the perspective of the design of the devices involved. To this end, it seeks to trace lines of continuity between traditional means of communication - such as the handwritten letter, the newspaper, television, the telegraph, and others - and contemporary channels for disseminating messages on social media. The pervasiveness of these channels in today's culture prompts, in addition to a historiography, an in-depth critical analysis of the design of these interactive media, considering their role in capturing attention, their establishment as a means of disseminating news and modelling interpersonal relationships in a public-private sphere.