Acknowledgements Introduction: The Power of Video Activism The Media Logics of Video Activism: Frames, Forms and Platforms Political Contexts and Frames of Video Activism Common Forms and Types of Activist Videos The System of Social Media Platforms The Platform System in the Age of the Splinternet How to Outsmart Platforms: The Most Boring Viral Video Trajectories of Video Activism: Past and Present Demanding Representation, Criticising Capitalism Participation and a Voice of One's Own Political Aesthetics The Role of Media Technology in the History of Video Activism Videos Everywhere: Between Empowerment and Disillusionment The Impact of Political Videos: Attention, Affect, Action Pathways to Impact Competing for Attention, Overcoming Obstacles Image Wars in the Discourse on Migration Political Emotions and the Different Audiences of Activism Activist Video Strategies: From Creation to Networking Video Aesthetics and Spreadability: A Variety of Effective Forms The Dynamics of Distribution: Networked Attention and Emergent Narratives General Video Strategies in the Climate Crisis Discourse A Case of Strategic Provocation: Rezo's Destruction of the CDU The Diversity of Video Activists: Practices and Communities Small Media Collectives: Committed and Counterpublic Fig. 11: Leftvision: Welcome to Hell - Polizei zerschlägt G20-Demo in Hamburg 2017 (,Police Smashes G20 Demonstration in Hamburg', Germany 2017) Influencer Networks: Hybrid and Hypervisible Large NGOs: Established and Evolving Hashtag Movements: Polyphonic and Unpredictable Embracing the Diversity of Video Activism Video Activism and the Public Sphere: Creating Counterpublics Publics and Counterpublics Creating Counterpublics: The Case of Black Lives Matter Expanding the Democratic Public Sphere Video Activism in Times of Upheaval: Towards Diversity in Solidarity Video Activism at War: Changing Contexts, Shifting Roles Video Activism under Pressure A Plea for Diversity in Solidarity Films and Videos Bibliography.