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. Chapters present a range of research tools used, such as interviews, online ethnography, visual analysis, text analysis and video analysis. There is also rich variation in sources for the empirical material studied, including Tumblr, YouTube, dating sites, hook-up sites, Facebook, Snapchat, Couchsurfing, selfies, blogs and photographs, as well as smartphones, tablets and computers. By focusing on the intersection between social media and intimacies, and their continuous co-constitution, this anthology offers new insights into the vast landscape of contemporary media reality. It will be a valuable resource for teachers, students and scholars with an interest in new media, communication, intimacy and affectivity.