Digital technologies have now become part of our daily lives and, for many people, represent the main means of communication and connection with the world. It is crucial to be aware of this and to adapt our communication strategies to effectively and contemporarily raise awareness about the importance of preserving widespread and valuable architectural heritage. In recent years, the paper author has been involved in various activities aimed at achieving this goal, organized into three main initiatives: the Archives of Sardinian Architecture (AAS), the MagnificApp, and the MuseoCagliari.it website. The AAS comprises around fifteen archives of architects and engineers, whose inventories, accompanied by drawings, will be accessible on a website currently under development. MuseoCagliari.it is a project that has created a georeferenced and freely accessible database dedicated to the modern art and architectural heritage of Cagliari. The website offers descriptive sheets, drawings, historical and current photographs and videos, and cultural itineraries. The MagnificApp is a mobile application that allows users to explore the architectural heritage of the University of Cagliari through informative sheets, 360° photos of inaccessible areas, and theatrical audio narrations.