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Using a content analysis method, this study examined the way in which 111 radio stations in the U.S. are using the social network system, Twitter. Results of the study revealed that there was only a weak correlation between stations' average quarter hour share and the number of followers of stations' Twitter sites. Also, music stations had more promotional tweets, while news stations provided more news items for their audiences.
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Ferguson et al. (2011) studied this question.
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