400 million Tweets per day as of May 2013
1.11 billion active users on Facebook as of July 26, 2012; Likes – 4.5 Billion – Up 67% – Average number of likes generated as of May 2013, up from 2.7 billion likes generated daily in August 2012.
100 million monthly Instagram users - as of February 2013
182.5 million U.S. Internet users watched 39.3 billion online content videos in April 2013 and video ad views that month totalled 9.5 billion.
91% of American adults have a cell phone; 56% of American adults have a smartphone; and 34% of American adults own a tablet computer. (5/13)
The top mobile operating system in the United States was Android with 52.3% of all smartphone subscribers. Apple’s share is at 37.8 percent. (3/13)
eMarketer estimates US digital ad spending will reach $41.9 billion this year, up 14% over 2012. Of that amount, $7.7 billion—and the bulk of incremental growth in digital advertising overall—will go toward mobile ads.
Sources: comScore, Pew Research, Blogpulse, Jupiter and Forrester, Netcraft, Internet World Stats, Technorati, MobiThinking and the GVU Users Survey