How many Fortune 100 CEOs have blogs?

Zero, not-a-one has a blog. So it seems chief executives at Fortune 100 companies are just not that into social media. Not only are there zero blogs from Fortune 100 CEOs, but only two of these corporate titans are on Twitter—Warren Buffett and Procter and Gamble’s Alan Lafley—according to research from UberCEO , a Web site about CEOs (not German words).