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Online harassment is increasingly applied as a form of information control to curb free speech and exert power in online public spheres. In recent years, states have appeared to be particularly invested in weaponizing information against dissidents in an attempt at dominating social and political discourses. Reports by prominent human rights institutions, as well as anecdotal evidence, indicate that Iran remains among the states with a track record of such actions. The scope of targeted cyber abuse varies by case. This study investigates the size and perpetrators of online violence, harassment, and abuse against critical members of the Iranian diaspora, including journalists, civil society activists, and artists, among many others. This study substantiates findings of qualitative interviews with a quantitative study of Instagram accounts of related individuals and explores the patterns and communities involved in disseminating hate speech in an attempt at manipulating public opinion and suppressing voices of dissidents.

We analyse the use of Twitter in political communication in Switzerland because, in comparison with other democracies, Switzerland with its strong federalism, fragmented party system, small country size and semi-professional politicians can be seen as the least-likely critical case, thus creating unique conditions for the use of social media. The study investigates the individual characteristics of Swiss Members of Parliament that could influence social media usage. Thus, the study contributes to the debate about equalization and normalization with respect to Twitter as a relevant microblogging channel for political communication and to the significance of country-specific conditions for the adoption of innovations in political online communication. The study explains the shift from equalization towards normalization with the diffusion of innovations theory.