Mambo is one of the most popular content management systems in the world. Correspondingly, you will find innumerable extensions on the net. The official repository alone at http://www.mamboforge.net/ is filled with useful and not-so-useful extensions.

There is no way that a book can be complete enough or current enough to cover all areas. Even http://www.mamboforge.net/ seems to be a bit overwhelmed with the abundance. For that reason, new solutions are being considered right within the project group.

What we would like to accomplish in this chapter is to give you an overview of the extensions delivered in the standard scope of Mambo. In the following chapters, you will find different extensions for certain targeted applications, for instance, a forum or a shop.

In each case, we have selected the most popular extension, but we will mention what the alternatives are. That way you will get a good initial understanding before venturing into the thicket of Mambo extensions.