28% of Fortune 500 companies (139) have public-facing corporate blogs this year, according to data from the University of Massachusetts at Dartmouth, released in August. This represents a 5% point increase from 23% in 2011 and 2010, and is up 75% from 2008, when just 16% of the Fortune 500 had public-facing blogs. 2 of the top 5 corporations (Exxon and Wal-Mart) have public facing blogs, while the remaining 3 (Chevron, ConocoPhillips and Berkshire Hathaway) do not.
In January, the Center for Marketing Research studied the Inc. Magazine 500 and found that the use of blogging had dropped to 37% in 2011, a 26% decline from 50% in 2010, and an 18% fall from 45% in 2009. Still, 92% of those using a blogging platform said it has been successful for their business, up from 86% in 2010. Read the rest at MarketingCharts.