Radiant is an open source content management system built using Ruby on Rails. It is designed for small teams and similar to Textpattern or MovableType, but is a general purpose content management system (not just a blogging engine).
Radiant features an elegant administrative interface that centers around three key components: pages, snippets, and layouts.
Content that is used in multiple places can be stored in a snippet. Snippets are very similar to PHP includes or Rails partials.
It’s easy for developers to extend Radiant as it is built on a widely accepted Web application development platform.
Website: http://radiantcms.org/
Demo: http://radiantcms.org/demo/
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