Download Joomla! http://www.joomla.org/download.html
Joomla is one of the worlds most popular CMS platforms
Since 2006, it has been downloaded more than 134 million times with a new download every 2.5 seconds.
Joomla holds a unique place in the Open Source community being the only non-corporate backed, community driven CMS platform in the world.
Joomla also implements modern programming standards using Object Oriented Programming and wrapping things up with a strong MVC design pattern.
Joomla.org has seen fast-paced growth since it's beginnings in 2006 and now hosts more than 7.5 million visitors on it's websites.
The Joomla CMS is one of the most widely translated CMS's with 64 languages currently supported.
Joomla has won numerous awards and has one of the most active Open Source communities with it's own community magazine, featuring over 465 articles published in the last two years and hundreds of thousands topics, posts and members in its forum.
From 2006 to 2011 there were 111 JoomlaDay events held in 34 countries, on 6 continents.
Once you start with Joomla!, you can extend it with one or several of the over 9400 extensions available from the Joomla!® community
Seeing how about 2.8% of the entire internet runs Joomla! chances are some of the sites you visit everyday are runned by this powerful platform.
So what are you waiting for? Go to http://www.joomla.org/ for more information and to get started!