This large-scale intermedia agenda-setting analysis examines U.S. online media sources for 2015. The network agenda-setting model showed that media agendas were highly homogeneous and reciprocal. Online partisan media played a leading role in the entire media agenda. Two elite newspapers-The New York Times and The Washington Post-were found to no longer be in control of the news agenda and were more likely to follow online partisan media. This article provides evidence for a nuanced view of the network agenda-setting model; intermedia agenda-setting effects varied by media type, issue type, and time periods. Keywords network agenda setting, intermedia agenda setting, partisanship, computational social science Since the 1950s, scholars have assessed the influence news media have on each other (e.g., McCombs, 2013; White, 1950) . In an agenda-setting context, researchers have assessed the ability media have to influence each other in terms of salience of coverage. This effect is known as intermedia agenda setting (McCombs, 2005) . That
Vargo and Guo REF examine online U.S media and show that the agendas set by the media are both homogeneous and reciprocal, and that much of the agenda-setting across media sources is generated from partisan sources.
Networks, Big Data, and Intermedia Agenda Setting: An Analysis of Traditional, Partisan, and Emerging Online U.S. News:
Journalism & Mass Communication Quarterly
Sociology