Media Use and Its Societal Effects

How do people obtain information in digital media environments—and what are the consequences for individuals, society, and democracy?

The Media Use and Societal Effects (MUSE) research group investigates how people use news and other information-related content, how these practices are changing in the wake of technological and societal shifts, and what impact this has on individuals, the public, and democratic societies.

Digital Information Environments

Our research focuses on digital information environments. These include traditional news outlets such as news websites and journalism apps, as well as social media, search engines, messaging services, generative AI, and other digital information sources. We examine not only news in the narrow sense, but also a broader spectrum of political and social information that people encounter in their daily lives. We are particularly interested in how the boundaries between journalistic, algorithmic, social, and AI-based information sources are shifting, and what role these different actors play in shaping citizens’ understanding of society.

Information-Use Practices

A key focus of our research is on information-use practices. We examine how people assemble their personal repertoire of information across various platforms, evaluate information, verify its credibility, and deal with conflicting information. This includes, for example, the use of social media for political information, the evaluation and validation of information from generative AI systems, and participatory forms of information engagement. We explore how people search for, select, share, comment on, and integrate information into their daily lives.

Furthermore, we are interested in how new information sources become established. We examine the adoption and use of new technologies, the role of digital media in the socialization of adolescents and young adults, and the conscious or unconscious non-use of news and other information sources.

We also examine the mechanisms of information evaluation and trust-building, as well as how people assess the quality and reliability of information in complex digital information environments.

Societal and Individual Impacts

The research group examines not only how information is used but also its consequences. We are particularly interested in issues of civic engagement, political participation, opinion formation, and democratic agency.

We analyze how digital information environments influence political attitudes and behaviors and what role they play in political polarization, political self-efficacy, trust in institutions, and social cohesion. In doing so, we investigate both the consequences of (a lack of) information and those of misinformation and disinformation.

At the same time, we examine the individual consequences of media use. These include issues of social and societal connectedness, information overload, a sense of social orientation, and the ability to navigate complex information environments.

Research Profile

Methodologically, we combine surveys, digital behavioral data, content analysis, qualitative studies, and computer-assisted methods to capture media use and its consequences as comprehensively and realistically as possible. A particular focus is on combining survey data with digital trace data to better understand actual media behavior and its effects.

Our research is conducted in close collaboration with national and international partners, including GESIS – Leibniz Institute for the Social Sciences, the University of Amsterdam, the University of Bremen, the University of Hamburg, Aalto University, the Reuters Institute for the Study of Journalism at the University of Oxford, Ludwig Maximilian University of Munich, Queensland University of Technology in Brisbane, and Friedrich Schiller University Jena.

Since 2013, we have been responsible for the German section of the Reuters Institute Digital News Report, one of the world’s most important comparative long-term studies on digital news and information use. Through this work, we provide key benchmarks on the development of news and information use in Germany and regularly contribute to the academic and public debate on the transformation of digital information environments.

The research group also maintains close ties with stakeholders from the media industry, politics, education, and civil society. We regularly share our research findings through lectures, workshops, and consulting and collaboration projects with journalists and media organizations, including the German Press Agency (dpa), ARD and its regional broadcasters, ZDF, and Deutsche Welle. In addition, we engage in dialogue with policymakers and educational institutions. These collaborations not only facilitate the transfer of scientific findings into practice but also provide important impetus for identifying socially relevant research questions and further developing our research.

The work of the research group’s members has been published in leading international journals, including the *Journal of Communication*, *Communication Theory*, *Communication Research*, *Public Opinion Quarterly*, *The International Journal of Press/Politics*, *Digital Journalism*, *New Media & Society*, *Information, Communication & Society*, *Journalism*, *Journalism Studies*, *Journal of Computer-Mediated Communication*, *International Journal of Communication*, *European Journal of Communication*, *Journal of Broadcasting & Electronic Media*, *Social Science Computer Review*, and *Computational Communication Research*. Our research has been funded by the DFG, NWO, BMFTR, DAAD, the state media authorities, and ARD and ZDF.

Overview

Leaders

Last update: 24.09.2026

Blog Articles, News, Projects, Publications, Podcast Episodes

Portrait Matthias Kettemann
Research Sprint Overview

When Scholars Sprint, Bad Algorithms Are on the Run

In the first research sprint of the project "Ethics of Digitalisation", funded by the Mercator Foundation, international researchers looked at the use of AI in the moderation of online content. Matthias Kettemann and Alexander Pirang provide an overview of the key findings in this blog article.

Portrait Matthias Kettemann
Facebook's Deletion Obligations in the Glawischnig Case

No “Censor for the World”

In an article on the Verfassungsblog [Constitutional Blog], Matthias C. Kettemann and his co-authors clarify misunderstandings in connection with the "Glawischnig ruling" of the Austrian Supreme Court.

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Book Chapter

Hate Speech and Counter-Speech in Commentary of Mass Media Coverage

In a contribution to the anthology "Social Media", Gregor Wiedemann and Cornelia Fedtke examine the interplay between hate speech and counter speech on social networks. The authors propose a model for computer-aided critical discourse analysis.

Portrait Amélie Heldt, Matthias Kettemann
Article on Verfassungsblog

Why Platforms Struggle with Ensuring Data Access for Academics

In their article on the Verfassungsblog [Constitutional Blog], Amélie Heldt, Matthias C. Kettemann and Paddy Leerssen write about the difficulties of gaining access to platform data as researchers.

Cover der Publikation "The Third Better Internet for Kids Policy Map"
Third Edition

On November 30, 2020, the third edition of the “Better Internet for Kids” Policy Map study was presented at the Safer Internet Forum. In addition to the HBI, TU Dublin also contributed to the study, which was commissioned by the European Commission.

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Open Access Article

Block, Hide or Follow

In this paper, Lisa Merten analyses how users curate their news consumption on social media by specifically following or blocking news accounts.

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Austria's Communications Platform Act

Some Comments on Austria’s Draft Communications Platforms Act

Matthias Kettemann, Gregor Fischer and Felicitas Rachinger analyse the draft of the new Austrian Communications Platforms Act in the latest Graz Law Working Paper.

Cover der Zeitschrift Jugend Medien Schutz Report Ausgabe 5 / 2020
Protection of Minors in Messaging Services

Use of Stickers in Messenger Services and Their Relevance to Youth Protection

In the Youth Media Protection Report, Kira Thiel and Stephan Dreyer provide an overview of how children and adolescents use stickers in messaging apps and also discuss the associated risks.

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Accompanying Text to Wolfgang Borchert

How Wolfgang Borchert’s “Draußen vor der Tür” Came to the Radio

Wolfgang Borchert's " Draußen vor der Tür [Outside the Door]" is a protest cry against the destructive power of war. After its first broadcast in 1947, it became the radio's biggest audience success in the post-war era. Hans-Ulrich Wagner contributed to the extensive booklet on the history of its creation.

Portrait Matthias Kettemann
Hate Speech Online

Comments on Austria’s Draft Communications Platform Law

On the Sustainable Computing Lab Blog, Matthias Kettemann analyses Austria's new Communication Platform Act. Although the Austrian legislator is already many things right with this "milestone" for more online protection but it still has a few edges.

Vorschau eines Artikels auf dem Innovationsblog der dpa:
dpa Innovation Blog

In an article on the  innovation.dpa.com, Leonie Wunderlich writes about the first results of our project "Use The News" on news usage in the digital age.

Youth Media Protection

Not for the Faint Hearted?! How the Federal and State Governments Plan to Modernize Youth Media Protection

The Law on the Protection of Minors from Harmful Media is too old and calls for modernisation. In the current issue of the journal Kinder- und Jugendschutz in Wissenschaft und Praxis, Stephan Dreyer gives an overview of the planned changes, their points of friction and to what extent these changes can be sustainable.

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