Ghost is an Open Source application which allows you to write and publish your own blog, giving you the tools to make it easy and even (gasp) fun to do. It's simple, elegant, and designed so that you can spend less time messing with making your blog work - and more time blogging.
The Cloud CMS - A totally new way to publish content to your website or app
Social Intranet, Task and Project Management, Activity Stream, Online Storage, CRM, Instant Messenger, File Sharing, Calendars and much more!
A flexible, elegant and easy-to-use content management system
Radiant is a no-fluff, open source content management system designed for small teams.
Business blog software combined with social networking
Free CMS, Open Source Content Management System