WordPress has a CMS Market Share of 54%

Interesting market share study of CMS systems by W3 Techs, which shows how much penetration WordPress has in CMS systems, 54%. That is an impressive lead over the rest of the CMS systems covered, with Joomla in a distant 2nd at just under 10%. The other interesting part is that 71% of websites do not use a content management system. I find this surprising and wonder how many are stuck using a custom CMS system.