The SilverStripe CMS is a flexible Open Source Content Management System that gives everyone involved in a web project the tools they need to do their jobs.

SilverStripe CMS is fast, flexible, and FREE to use. The admin panel is built using Prototype, Scriptaculous and the TinyMCE rich text editor. It uses Object Oriented PHP5 and talks to MySQL backend.

Features

• Drag and drop pages
• Edit and style content using a toolbar
• Easily insert links, images, and Flash into your content
• Copy and paste content from MS Word
• View a draft before pushing them live
• Publish your site with one click
• Assign different user roles and permissions
• View older versions of a page and roll back if needed

There is a nice feel to using the explorer interface to manage files and then seeing your site in preview mode. A really nice touch is being able to see your site in draft, and compare it to the published version.

Website: http://www.silverstripe.com

Demo: http://demo.silverstripe.com