The modern digital public sphere requires effective content moderation systems that balance the interests of states, technology companies, and the public. This article examines how two pieces of legislation establish regulatory intermediaries in an attempt to strike this balance: the EU's...

The Digital Services Act (DSA) marks a paradigmatic shift in platform governance, introducing mechanisms like the Statement of Reasons (SoRs) database to foster transparency and observability of platforms' content moderation practices. This study investigates the DSA Transparency Database as a...

By introducing the concept of high-reach AI, this paper focuses on AI systems whose widespread use may generate significant risks for both individuals and societies. While some of those risks have been recognised under the AI Act, we analyse the rules laid down by the Digital Services Act (DSA)...

Political debates, campaigns, and advertising increasingly take place on online platforms. However, research on election communication has been significantly hampered as formerly accessible data sources have been withdrawn or commercialised. With the implementation of the EU Digital Services Act...

This article examines the applicability of the Digital Services Act (DSA) to ChatGPT, arguing that it should be classified as a hybrid of the two types of hosting services: online search engines and platforms. This requires classifying search engines as hosting services, which we show is...

Numerous empirical studies indicate that social media use is correlated with, and sometimes might be causing, mental harms like addiction, anxiety and depression, or lowering of cognitive abilities. In 2023, the European Parliament called on the European Commission to introduce new rules to...

There is an ongoing debate about how to moderate toxic speech on social media and the impact of content moderation on online discourse. This paper proposes and validates a methodology for measuring the content-moderation-induced distortions in online discourse using text embeddings from...

Available open access digitally under CC-BY-NC-ND licence. Mobile apps have transformed how we live, work and connect – but at what cost? This book examines the immense power Apple and Google wield over society, arising from their control of app stores as well as mobile operating systems and...