Warren Whitlock

Mark Shaefer, Executive Director of {grow}, is among the most acclaimed and accomplished marketing consultants in America, with a special emphasis in social media marketing.  He's an AdAge magazine “Power 150″ marketing blogger, TweetSmarter 2011 Global Twitter User of the year, and Peer-elected 2011 B2B Twitter User of the Year. He has won numerous international awards for his blog {grow}, is the author of three bestselling marketing books, and owns seven patents. His book The Tao of Twitter is the best-selling book on Twitter in the world and was named the B2B Magazine (UK) social media book of the year. His book Return On Influence was named to the elite “Top Academic Titles” of the year by the American Library Association, which declared it a “path-finding” and “essential” book. Mark has 30 years of global sales and marketing experience and two advanced degrees, in business and applied behavioral sciences. He is a globally-recognized business writer, university lecturer, and innovator, receiving seven i