May 31, 2018Jan 31, 2018Dec 31, 2017Oct 31, 2017Sep 30, 2017
Twitter followers322,807316,846314,828311,024309,210
Facebook likes3,001,6773,014,6393,011,8913,001,1652,997,129
YouTube subscribers28,82828,49628,34928,11528,006
YouTube video views6,884,2186,573,0596,424,9236,236,3016,144,903
Pinterest followers53,98152,66652,38251,54051,241
Instagram followers340,367310,960300,818285,511272,443
Google+ followers336,237337,959338,186338,818339,089
LinkedIn followers59,94857,57657,03156,07255,603
Website visits26,949,18236,872,66643,733,84832,965,42031,261,752

Notes:All social media data was pulled in from the social networks directly on the last day of each month; website visits = total global monthly traffic on desktop & mobile web from SimilarWeb; includes figures from Barnes & Noble, B&N College and NOOK