While the majority of previous research suggests there are positive relationships between digital media use and political participation and knowledge, most studies have relied on cross-sectional surveys and have thus not been able to firmly establish the chain of causality. Also, there is little research investigating use of different forms of digital media and their relative effects on political participation and knowledge. This study examines (a) the effects of digital media use on political participation and knowledge and (b) whether different forms of digital media use affect people differently. Drawing on two representative panel surveys, the study demonstrates that there are only weak effects of digital media use on political learning, but that the use of some digital media forms has appreciable effects on political participation.

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This study investigates the framing of the 2003 Iraq War in the elite newspapers in Sweden and the US, Dagens Nyheter and The New York Times. The content analysis revealed significant differences between the two papers: the military conflict frame was more common for the US war coverage while the responsibility and anti-war protest frames were more common for the Swedish war coverage. Both newspapers offered human interest stories and media self-references. The US newspaper, however, relied more heavily on official government and military sources. In addition, the tone of war coverage differed across the two nations, with Swedish reporting being more negative overall. Implications of the differences in war coverage as well as possible reasons rooted in the national media and political systems are discussed.

Although mediatization as a term is commonly used in the academic literature, it is rarely defined well and there are almost no studies that explicitly seek to investigate the mediatization of politics. Drawing on the literature on mediatization, media interventionism, political news journalism and related areas, the purpose of this article is to develop indicators of the degree to which news content is mediatized, and test these in a comparative content analysis of how Swedish and US television news covered the 2006 Swedish and 2008 US election campaigns. The results show that election news on US television is more mediatized than that on Swedish television, as expected. However, few differences were found across commercial and public service television news within Sweden. The study also suggests that the mediatization of news content may be moderated by national journalism cultures, political news cultures and political communication cultures.

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