influence 
Ari Herzog
APRIL 16, 2012
Mark Schaefer introduced his first book, “ The Tao of Twitter ,” on his blog on February 15, 2011. Sharing content and engaging with people is the catalyst that makes things happen. McGraw-Hill published Mark’s second book, “ Return on Influence ,” in February 2012. Mark, what does that line mean?
Ari Herzog
APRIL 16, 2012
Mark Schaefer introduced his first book, “ The Tao of Twitter ,” on his blog on February 15, 2011. Sharing content and engaging with people is the catalyst that makes things happen. McGraw-Hill published Mark’s second book, “ Return on Influence ,” in February 2012. Mark, what does that line mean?
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