Twitter users were fascinated by the launch of another social network, Google+, while the declaration by Rep. Michele Bachmann (R-Minn.) of her candidacy in the 2012 presidential election was the topic of the most news links shared by bloggers, and the most-watched news and politics video on YouTube was footage of an alleged unidentified flying object over London, according to the Pew Research Center's Project for Excellence in Journalism’s New Media Index for the week of [...]

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