Jan Rau

Junior Researcher Internet Research

Since August 2020, Jan Rau is a Junior Researcher in the Media Research Methods Lab at the Leibniz-Institute for Media Research | Hans-Bredow-Institut (HBI), working on its (Social) Media Observatory, a project for the Research Institute Social Cohesion (RISC).

His research focuses on the question of how the internet shapes and changes the media public sphere. Among other things, he looks at digital echo chambers and counterpublics, the manipulation of public opinion on the internet and right-wing movements on the internet.

He holds an MSc in the Social Sciences of the Internet from the Oxford Internet Institute at Oxford University and has worked at the Institute for Strategic Dialogue, the Computational Social Science Department at GESIS – Leibniz-Institute for Social Science, Princeton University, and the Computational Propaganda Project at the Oxford Internet Institute.

Contact information

Jan Rau

Junior Researcher Internet Research

Leibniz Institute for Media Research, Hans-Bredow-Institut
Warburgstraße 30b
20354 Hamburg

Last update: 12.11.2025

Works by Jan Rau

Cover of the article written by Anna von Garmissen published on January 10th, 2026 on the media platform of epd Medien: "Gefährliche Abwärtsspirale. Zur Lage des Journalismus in Deutschland"
Publikation Article in epd Medien

Studies on the State of Journalism in Germany

What is the state of journalism in Germany? In her article for epd Medien, Anna von Garmissen discusses three recent studies on the state of journalism in Germany. According to von Garmissen, the findings are thought-provoking and, when considered together, should be alarming to all of us.

Hände tippen auf Laptop-Tastatur, darüber eingeblendete Symbole für Text, Dokument, Lupe und Auszeichnung mit Häkchen.
Beitrag Media Research Blog Post

Platform Badges for Civic Communication

How can platforms address distortions in the digital attention economy without restricting free expression excessively? This blog post explores how new incentive structures can promote constructive communication on digital platforms and the potential of the Digital Services Act to facilitate such interventions.

Cover of the Publication
Publikation Chapter in Anthology

Contextualized Repertoire Maps in Media Usage Research

In their article, Dr. Lisa Merten and Prof. em. Dr. Uwe Hasebrink present contextualized repertoire maps as a method for recording media repertoires based on a study on news usage and discuss their possibilities and limitations in media usage research. Their article is part of the anthology “Researching Media, Data, and Networking Practices: Methodological Concepts and Research Software.”

Publication by Jan-Ole Harfst in the special edition
Publikation Special Edition of the Bonner Rechtsjournal

Communication Risks in Online Environments

How can German democracy remain resilient in the face of the communicative threats posed by the digital space? Jan-Ole Harfst's article shows that communicative threats on the internet cannot be countered at the national level alone, but require supranational protection of democracy, and assesses the significance of the Digital Services Act in this context.

Publikation Internet Policy Review

Can Quality Badges Improve Communication on Online Platforms?

A seal of approval for civil communication could promote successful public communication on online platforms while respecting users'freedoms. In their article 'Platform Badges for Civic Communication. An Interdisciplinary Discussion of a Risk Mitigation Measure Pursuant to Art.', Jan Rau, Jan-Ole Harfst and Dr. Tobias Mast examine various design options for such seals.

Cover of the publication
Publikation Open Access Publication

Global Media and Internet Concentration

The report offers a thorough overview of the development, economic importance, and market concentration of major companies in Germany's telecommunications, media, publishing, and internet sectors from 2019 to 2023. It places a particular focus on the growing dominance of digital platforms.

Cover der Zeitschrift "Medien & Kommunikationswissenschaft" Heft 4/2025
Publikation Available Open Access

Issue 4/2025 M&K published

Issue 4/2025 of our open access journal “Medien & Kommunikationswissenschaft" (M&K; Media & Communication Studies) has been published online via the platform Inlibra.

Cover of the Book Chapter
Publikation Chapter in Cohesion Report

The Climate Discourse on Social Media

The Social Media Observatory (SMO) examined the dynamics of climate discourse on social media for the Research Institute Social Cohesion's (RISC) second cohesion report. The study found that climate scepticism and misinformation are common in social media debates. However, it is evident that these views are significantly less prevalent in wider society.

The cover of the article "Fertility Preservation from the Patient's Perspective: Areas of Conflict and Information Needs in Social Media," published in the journal Die Onkologie
Publikation Article in the Journal Onkologie

Perspectives of Cancer Patients on Fertility Preservation Measures

Fertility preservation is a key challenge for cancer patients. A qualitative content analysis of social media posts offers insights into patient experiences and provides guidance for needs-based fertility counseling.

Cover of the Working Paper
Publikation Working Paper Available for Download

Algorithmic Competence of Young People on TikTok

A new qualitative #UseTheNews study by the Leibniz Institute for Media Research examines what teenagers and young adults know about how TikTok's algorithmic recommendation system works.

Cover of the publication
Publikation Open Access Publication

Information Systems and Troubled Democracy

Internet freedom has declined for 14 consecutive years. This publication examines how principles for regulating information ecosystems are being implemented, as well as the challenges faced by public institutions and other stakeholders in their efforts to combat misinformation and disinformation.

Screenshot of the article by Dr. Gregor Wiedemann, AVISO, issue no. 81 (Fall 2025)
Publikation Article in aviso I Informationsdienst der DGPuK

AI and Research: Harnessing Potential, Understanding Risks

In his contribution, Gregor Wiedemann highlights the ambivalences that can arise from the use of AI tools in communication science research processes, as well as the necessity of precise risk assessment in this context.

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