It shouldn't surprise anyone, but a new study surveying 900 marketers and sponsored by Social Media Success Summit 2009 shows that marketers are heavily invested in social media, to the tune of 88 percent using at least one social outlet. What is a little surprising is that 72 percent of respondents claim they have only been using these resources for a few months or less.

According to the study, the top social sites in use by marketers are Twitter, blogs, LinkedIn, and Facebook.