The History of Content Marketing About Content Marketing Institute (CMI) The Content Marketing Institute is the leading global content marketing education and training organization. CMI teaches enterprise brands how to attract and retain customers through compelling, multi-channel storytelling. CMI's Content Marketing World event, the largest content marketing-focused event, will be held in Cleveland, Ohio, USA, September 8-11, 2014. CMI also produces the bi-quarterly magazine Chief Content Officer, and provides strategic consulting and content marketing research for some of the best-known brands in the world. CMI is a 2012 and 2013 Inc. 500 company.