What is a Facebook Fan worth? Everyone has their own views on that question, but now a social media measurement firm called Syncapse has come up with an actual dollar value. The answer? An average fan is apparently worth about $136.38, although for some very successful social marketers the value can be dramatically higher, while for some less successful companies it can be virtually zero. To read the full post by Mathew Ingram – along with a link to the Syncapse report, click heregigaom.com