There are a lot of examples of CMS, and possiblity is that you might have already used one of them. One of the most popular among them is WordPress. It is used generally for blogging as it has great flexibility with user friendly interface. It also supports documentation for customizing WordPress, which is one of its best feature. According to data, WordPress maintains over a 35.2% market share on websites with a known content management system. There are also lots of other less well-known content management systems that target themselves to large enterprises, like Wix, Drupal etc.