Minor point but Wordpress is not a CMS - its a blogging tool. You can extend its functionality to try and replicate a CMS but its never going to have the feature set of something like Concrete 5, Squiz, Drupal etc.
Quote from: DrunkenZombiee;354913Go for wordpress or one of the main free CMS (content management systems) as others have stated.
What are your requirements in terms of bulitin boards, picture and video integration, landing pages and news feeds. The more info the more help we can give.
DZ