The sample code on Defining SharePoint Content Types in Code posted on "Wrox Article : Creating Content Type Metadata for SharePoint 2007 Document Management Solutions : Page 2 - Wrox" contains an error.

As you probably know in the land of Open Source Content Management Systems (or CMS) there is a lot of choice, but the two main players are Drupal and Joomla. When first choosing a CMS, it can be difficult to know which of these two (or the many others) to choose.