Drupal is not the only open source CMS out there of course. It just happens to be the one I like most. Here I’ve provided some links to other pages if you’re inclined to venture elsewhere…
Joomla: http://www.joomla.org/
Typo 3: http://www.siteground.com/typo3-hosting.htm
WordPress: http://wordpress.org/
e107: http://e107.org/
