Confidence in interpersonal and social communication is a key concept whose meaning is both simple and extremely complex, highly analyzed and useful in research in social sciences and in everyday life. The opportunities opened by new media and especially through social networks represent both enormous benefits for co- building the confidence, and new sources of distrust or even resistance  (especially ,for example, in a medical settings ) .

Do we trust ideas? Company, institution, state?  Is its representation enough, or does trust requires proof? Asking these questions may bring us on an unexplored path about the process of confidence, especially in the digital environment, and should provide some fundamental redefinitions for interaction.