The explosion of blogging is an indicator of growing official interest in social media by major corporations. Consider the annual survey of Fortune 500 companies by the Center for Marketing Research at The University of Massachusetts which shows that 49% of them use social networking, up from 27% in 2007; 45% use online video, up from 24% in 2007; 39% use blogging, up from 19% in 2007; and 23% do not use any social media tools, down from 43% in 2007. Read more