Content Management Systems are an increasingly popular form of publishing content on the Internet. Its popularity gained by a large intuitive, rich diversity of graphical representations and great functionality. The author focused on a characterization of free systems based on GNU GPL license which have high prospects for growth and development. The main goal of this article is to find common ground between knowledge management and content management systems. Author believes that area of content management is not sufficiently exploited and would greatly assist the process of knowledge management in organizations. The article includes possible scenarios and development steps of Content Management Systems implementation in area of Knowledge Management. There were also defined the different points of view of knowledge management depending on the assumed perspective. This chapter is divided into 4 areas, which were finally assembled: content management, content management systems, GNU GPL license, knowledge management and implementation of content management systems in area of knowledge management.