Social media, characterized by user-generated content, interactivity, participation and community formation, have gained much research attention in recent years. At the same time, intimacy, affectivity and emotions are increasingly growing as fields of study. While these two areas are often interwoven, the actual interconnections are rarely studied in detail. This anthology explores how social media construct new types of intimacies, and how practices of intimacy shape the development and use of new media, offering empirical knowledge, theoretical insights and an international perspective on the flourishing field of digital intimacies.