"Digital Culture & Society" is a refereed, international journal, fostering discussion about the ways in which digital technologies, platforms and applications reconfigure daily lives and practices. It offers a forum for critical analysis and inquiries into digital media theory and provides a publication environment for interdisciplinary research approaches, contemporary theory developments and methodological innovation. This special issue discusses theoretical and artistic investigations on citizen engagement, digital citizenship and grassroots information politics. The articles reflect on the role of the digital citizen from the perspectives of (digital) sociology, science, technology and society (STS), (digital) media studies, cultural studies, political sciences, and philosophy.