In my last post, I discussed whether a Content Management System was right for you. This time were going to go over a few different types of systems. There are many on the market, ranging from enterprise level systems costing tens of thousands of dollars to open source systems with no purchase cost at all. With each increase in cost, whether its software or implementation, there is an associate cost in ongoing maintenance and time involved in learning the system. For this article Im going to stick to three of the most common open source solutions, plus one commercial product that is not quite a full fledged CMS, but can fit the bill in many situations.