- any extension which allows to move beyond the text and title options provided by Joomla’s com_content, and choose your own fields and options.
- any extension which also moved beyond the section/category hierarchy of Joomla 1.5 and 1.5.
Today the Joomla extensions site counts not less then 10 GPL licensed CCK solutions. All of which add advanced content management capabilities to Joomla. In a sense, each of the CCK solutions are mini CMS systems wrapped inside a Joomla extension.
Are CCK’s the answer to innovating Joomla ? I don’t believe so. One of the reasons I choose Mambo for my first web project back in the days was because it was easy to use and easy to extend. As a user I could set it up in 5 min, just running through the installer, and as a developer I could extend it in 5 min, just looking at the code.