How does Drupal compare to other open source CMS system?
Drupal is also often compared with other open source content management systems including Joomla, Plone, Scoop, Silverstripe, Typo3, Graffitti, Moveable Type and WordPress. There are characteristic features to all of these systems that make them appropriate in certain contexts, and most of them compare favorably to Drupal in one category of operation or another. But few of them are capable of offering the balance between performance and functionality found in Drupal.