Twitter Trackbacks for #FB in Dec. 2011 had 845 million MAUs (monthly active users), 483 million daily active users (DAUs) and 425 million mobile MAUs [twitter.com] on Topsy.com

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evanatwired #FB in Dec. 2011 had 845 million MAUs (monthly active users), 483 million daily active users (DAUs) and 425 million mobile MAUs

02/01/2012 Reply Retweet Favorite

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