The document discusses content management systems (CMS) and compares different PHP-based CMS platforms. It categorizes CMSs as commercial or open source. It also compares CMS platforms like PHP, Ruby, ASP etc. and how they store data, whether in flat files or databases. The document then focuses on comparing PHP-based CMSs and what they offer out of the box in basic installation. It provides a table to compare features and says it will help with choosing a CMS going forward.