If you're relatively new to the framework world and haven't quite gotten your head around the whole Model/View/Controller way of doing things, you should check out this new tutorial from NETTUTS.com giving an overview of the method that's so popular among PHP frameworks these days.

Model-View-Controller (MVC) is probably one of the most quoted patterns in the web programming world in recent years. Anyone currently working in anything related to web application development will have heard or read the acronym hundreds of times. Today, we'’ll clarify what MVC means, and why it has become so popular.

The look at each part of the MVC stack including what it's for and how it connects with the other two parts. An example is included - not in code but with an image showing the communication between the modules. They wrap up the post with a look at why using a MVC framework can help you be more productive. Their example uses CakePHP but the ideas could be applied to any MVC framework out there.