http://www.insidehighered.com/sites/default/server_files/styles/blog_landing/public/technology_and_learning_blog_header.jpg?itok=aQthgJ91By Joshua Kim. Over three-quarters of all the time that people in the U.S. spend on social media is done so on a mobile device.  90 percent of people that access Facebook on a daily basis are doing so via mobile, and over 50 percent of Facebook users only access the social network on a mobile device.   Over 80 percent of Twitter users are mobile users.  More than half of YouTube views come from a mobile device. Read more...