Q4 2013 research by Janrain painted a similar picture, though it looked at slightly different social networks. The analysis found that 45.1% of social networkers worldwide entered their Facebook IDs when using social sign-in—the highest percentage. With the exception of second-place Google (35.4%), Facebook ruled the rankings. Read the rest at eMarketer.
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![Social Login Preferences, Q2 2011-Q4 2013 [TABLE] Table - Social Login Preferences](http://www.emarketer.com/images/chart_gifs/167001-168000/167723.gif)