The Center for Marketing Research at the University of Massachusetts Dartmouth has completed a study of Social Media usage by the top 500 businesses in USA.  Both the adoption and the awareness continue to increase, with over 90%  of firms using at least one social media tool - Twitter, LinkedIn, Facebook - in 2009 and over 75% of them describing themselves as “very familiar” with social networking.

Social networking and blogging have seen the most growth in adoption, while other technologies have flattened or even declined in use, including wikis and online video. Twitter usage, of course, has caught on quickly—more than one-half of businesses reported tweeting in 2009. This was the first year respondents were polled about Twitter.

Here are the types of Social Media being used ….

More information available at uMass