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The fragmentation of the mass media audience has led scholars to examine the growing partisanship of news consumers as less partisan individuals turn to more entertainment-oriented fare. An analysis of national survey data from 1998 to 2006 suggests that not only has the news audience grown somewhat more partisan over time, but among these partisans a distinct migration has occurred to sources more likely to be friendly to individual political beliefs or away from sources perceived as less friendly.
Barry A. Hollander (Sat,) studied this question.