Mambo is arguably the most popular free open source CMS available today. Since the Mambo CMS became open source under the GPL in 2001, it has seen over 5 million downloads and gathered an impressive list of awards. Mambo delivers a complete, robust, scalable content management solution that is is used all over the world to power everything from simple, personal homepages to complex corporate web applications.

Awards:

• "Best Free Software Project of the Year" - Linux Format Magazine, 2004
• "Best Linux or Open Source Software" - LinuxUser & Developer 2004
• "Best Open Source Solution" - LinuxWorld, Boston 2005
• "Best of Show - Total Industry Solution" - LinuxWorld, Boston 2005
• "Best Open Source Solution" - LinuxWorld, San Francisco 2005
• "Best Open Source Solution" LinuxWorld, Sydney, Australia 2006

The home site of the Mambo project is http://source.mambo-foundation.org/

You can download Mambo from https://sourceforge.net/projects/mambo/