Justus Uitermark has many research interests but mostly studies politics and cities. As a relational sociologist, he focuses on networks: what sorts of networks do people form to resolve their collective problems and achieve their goals vis-à-vis others? With a background in human geography, he is particularly interested how different kinds of environments mediate collective action. Uitermark has a long-standing interest in the roles of cities as terrains of political struggle and more recently has been studying how social media platforms facilitate challenges against the status quo or breed conformity.