Michael Stelzner Lisa Rothstein of DrawingOutYourGenius.com Read our live tweet thread of this keynote address here Social Media Examiner has been surveying marketers for the past 5 years on the business impact of their social media activities. Those numbers have gone steadily down; just over half of those recently surveyed were confident their social media was positively impacting revenue. What is going on? Facebook's S Curve Social Media Examiner founder Michael Stelzner introdu...