B2B Marketers to Increase Social Spend - eMarketer

Fifty-four percent of respondents currently use social media for marketing. That was up 9 percentage points from November 2008 and about 4 points from June 2009, showing a steady increase in B2B participation.

It's also interesting to notice that more than a quarter of US B2B companies are using social media to generate awareness, followed by customer engagement.