Social networking sites: Levels of trust, engagement
2011 study by the Pew Research Center on levels of trust, tolerance and engagement among social networking users.
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Pew Research Center report: The Internet and campaign 2010
Pew Research Center report surveying online participation during election season.
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Measuring influence in Twitter: The million follower fallacy
2010 study for the Association for the Advancement of Artificial Intelligence on how social media users wield influence.
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