MODx : Content Management System & PHP Application Framework

[5ury4]

MODx is the first free PHP CMS to offer an API that fully supports Web 2.0 Ajax technology thanks to script.aculo.us. Expect to see this grow more and more into our manager over time, but you can make use of it today in your own custom applications including live search, web effects, Ajax communications and more.

PHP Application Framework – a flexible API and a event model that allows to override how the core behaves means that you get both tremendous flexibility, but also the ability to customize the solution to your needs and a simple upgrade path.

consider MODx your #1 free Search Engine Optimization CMS. MODx helps your SEO efforts by making it easier to adjust meta-content of your site on a per-page basis.

http://modxcms.com

Now this is really damn cool right?