This issue of the Weizenbaum Journal of the Digital Society brings together contributions that deal with the transformation of the public sphere in times of digitalization from an interdisciplinary perspective. Authors are Pu Yan and Ralph Schroeder, Paddy Leerssen, Damian Trilling, and Sercan Kiyak, Stefan Mertens, David De Coninck, and Leen d’Haenens.