The research conducted by the blog UberCEO.com looked at Fortune's 2009 list of the top 100 CEOs to determine how many were using Facebook, Twitter, LinkedIn, Wikipedia, or had a blog and found they were mostly absent from the rapidly growing social media community. Only two CEOs had Twitter accounts and 81 percent of CEOs did not have a personal Facebook page.

In addition, the study showed that only 13 CEOs had profiles on the professional networking site LinkedIn. Three CEOs such as Michael Dell from computer maker Dell Inc., Gregory Spierkel from technology products distributor Ingram Micro Inc., and John Chambers from Cisco Systems Ltd. stood out with more than 80 connections but they were all from technology companies

Three quarters of the CEOs did have some kind of Wikipedia entry, but nearly a third of those had limited or outdated information such as incorrect titles, or lacked sources and not one Fortune 100 CEO had a blog.

Referring to financial reporting regulations aimed at protecting investors Sharon Barclay, editor at UberCEO.com who runs executive PR firm Blue Trumpet Group, said that the heads of the top U.S. companies are giving the impression that they're disconnected, disengaged and disinterested from the way their own customers are communicating.