Fortune 500 favour Twitter

The number of Fortune 500 companies actively using Twitter has increased significantly in the last twelve months. B2B reports on the results of University of Massachusetts, Dartmouth study showing that 60% of these top companies now regularly use Twitter compared to 35% a year previously (2009).  The rate of public facing blog usage is increasingly much more slowly, with 23% of organisations using blogs, compared to 22% in 2009.