I have to say I was not surprised to read that according to a survey by Mzinga and Babson Executive Education, that less than one in five marketers measured their ROI from their social media marketing efforts in 2009.

“Marketers believe that measuring true ROI for social media is difficult,” said Geoff Ramsey, eMarketer CEO. “There are so many metrics available that it is difficult to choose which ones are the most important. In addition, marketers do not start with clear objectives for using social media.”

So how do companies measure the success of their social media marketing campaigns? One obvious was is to simply measure traffic to your site from the different social networks and this is the measurement that between 60% and 76% of companies use.

How do you measure the success of your social media efforts?