DigitalINFOGRAPHIC: Facebook’s Active Users Percentage Drops in 4Q 2014Just one of the 10 largest social networks saw a decline in percentage of active users in the fourth quarter of 2014 versus the year-ago period: Facebook.By David Cohen|March 17, 2015ShareBy David Cohen|March 17, 2015SharePages: 1 2 Adweek Adweek