Mambo Content Management System
Mambo is one of the most powerful Open Source Content Management Systems on the planet. The Joomla system was derived from Mambo, and the former has actually driven Mambo into the background, but there are still many Mambo websites out there, and we are happy to support you with them.
Mambo is still used all over the world for everything from simple websites to complex corporate applications.

Mambo has won the LinuxUser & Developer Award 2background-color: #b7c3cf; -moz-border-radius: 10px; min-height: 20px; width: 575px; font-weight: normal; padding: 15px 15px 15px 15px;background-color: #b7c3cf; -moz-border-radius: 10px; min-height: 20px; width: 575px; font-weight: normal; padding: 15px 15px 15px 15px;4 for 'Best Linux or Open Source Software'.
Features
Source code is completely free.
A large and healthy user and developer community.
Provides a basic level of content approval for registered users.
Online help.
Page caching mechanism to improve performance on busy sites.
Trash manager
Advertising management (banners, etc).
Media (images, documents) upload and management.
Content display scheduling.
Content syndication (RSS).
Search engine friendly (SEF) URL's.
Internationalisation (interface translation).
Content macro language (aka mambots).
Advanced and separate system administation system.
Advanced package/addon/template deployment system.
Simple but powerful template system (written mostly in HTML, no complex templating syntax to learn, just a couple of PHP functions to include).
Hierarchial user access groups.
Basic visitor statistics.
Multiple WYSIWYG content editor support.
Simple polls.
Content voting/rating system