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This case study examines how traditional and Internet news use, as well as face-to-face and online political discussion, contributed to political participation during the period leading up to the Iraq War. A Web-based survey of political dissenters (N = 307) conducted at the start of the U.S.-led invasion of Iraq provides the data used to examine the relationships among informational media use, online and face-to-face political discussion, and political participation among the respondents, who were recruited through blogs, discussion boards, and listservs opposing the Iraq war. Analyses reveal that among these respondents, Internet news use contributed to both face-to-face and online discussion about the situation in Iraq. Online and face-to-face political discussion mediated certain news media effects on anti-war political participation. The study stresses the complementary role of Web news use and online political discussion relative to traditional modes of political communication in spurring political participation.

KeywordsParadoxical though it may seem, neglect of the past entails imperfect understanding of the present. Lasswell, Lerner, and Speier (1979)

Politicians' Twitter habits can vary considerably. Those who choose to use may do so as part of a broad discussion community or as a one-to-many broadcaster. Because each user sees a different mix of tweets, a politician seen by one user as interacting with the public may be seen by another as engaging in one-way communication, potentially prompting different evaluations of the politician, the ongoing discussion, or even Twitter itself. This study uses an experiment to test the effects of different engagement and framing styles in politician tweets on evaluations of the politician, other discussants, and Twitter itself. Findings suggest that politicians who use Twitter to broadcast, rather than engage with other users, not only receive worse evaluations themselves but that the negative evaluation carries over to other users discussing the same topics, as well as to evaluations of the utility of Twitter as an information source. This effect is attributed to intramedium interaction, in which reactions to one aspect of a multimedia object carry over to other aspects of the same object.

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This study examines the roles of partisanship, partisan media use, and political discussion in the development of belief gaps. Using national survey data, we construct models of political identity, media use, and discussion factors predicting beliefs on five contested political issues and find that ideology and partisanship are generally stronger predictors of beliefs than is education.