Dear AoIR friends & colleagues: We want to draw your attention to a new special issue for Internet Policy Review. The introduction plus links to all 10 open access articles is here: https://policyreview.info/articles/analysis/introduction-special-issue-locat... Locating and theorising platform power Guest-edited by: David B. Nieborg, University of Toronto Thomas Poell, University of Amsterdam Robyn Caplan, Duke University José van Dijck, Utrecht University Abstract Against the backdrop of ongoing public and political debates about the power and regulation of large platform conglomerates, this special issue calls for more critical, conceptual, and empirical studies on platform power. While a lot of valuable research has already been done, we see a tendency in both public and scholarly debates on leading platform companies to develop one-sided, monolithic understandings of this power. Instead, we want to argue for a relational perspective, which focuses on the relations of dependence that grow around specific platforms. Therefore, contributions locate and theorise platform power. Through specific case studies on particular types of platforms the contributions home in on the various modalities of power. The papers address three broader themes that speak to the different facets of platform power: (1) analysing platform infrastructures and markets; (2) platform governance; (3) the negotiation of platform power and its alternatives. Table of contents The platform behind the curtain: Obfuscated brokerage on retail trading platforms By Andreas Gregersen, University of Copenhagen Jacob Ørmen, University of Copenhagen Monitoring infrastructural power: Methodological challenges in studying mobile infrastructures for datafication By Stine Lomborg, University of Copenhagen Kristian Sick, University of Copenhagen Sofie Flensburg, University of Copenhagen Signe Sophus Lai, University of Copenhagen Platform power in AI: The evolution of cloud infrastructures in the political economy of artificial intelligence By Dieuwertje Luitse, University of Amsterdam Observing “tuned” advertising on digital platforms By Nicholas Carah, University of Queensland Lauren Hayden, University of Queensland Maria-Gemma Brown, University of Queensland Daniel Angus, Queensland University of Technology Aimee Brownbill, Foundation for Alcohol Research and Education Kiah Hawker, University of Queensland Xue Ying Tan, Queensland University of Technology Amy Dobson, Curtin University Brady Robards, Monash University Protocol power: Matter, IoT interoperability, and a critique of industry self-regulation By Colin Crawford, Concordia University Platform lobbying: Policy influence strategies and the EU's Digital Services Act By Robert Gorwa, Berlin Social Science Center (WZB) Grzegorz Lechowski, Free University of Berlin Daniel Schneiß, Kiel University Copyright callouts and the promise of creator-driven platform governance By Blake Hallinan, Hebrew University of Jerusalem CJ Reynolds, Hebrew University of Jerusalem Omer Rothenstein, Hebrew University of Jerusalem The contingencies of platform power and risk management in the gig economy By Niels van Doorn, University of Amsterdam Platforms´ regulatory disruptiveness and local regulatory outcomes in Europe By Eliska Drapalova, Berlin Social Science Center (WZB) Kai Wegrich, Hertie School How platform power undermines diversity-oriented innovation By Paula Helm, University of Amsterdam