From Joomla.org
Download Joomla 1.5
It is with great pride that the Joomla! community announces to the world the immediate availability of Joomla! 1.5 Stable [Khepri]. As a community of contributors, we have been through celebrations and tribulations. We have had fun, and we have worked hard. We have learned from and helped one another. What […]

ElearningForce, a Denmark based company is an online market place where you can buy high-quality Joomla components and modules. Great survey, quiz, and multi-site adminstrative components make this worth a look.

After 8 months of development Drupal 5.0 has been released.
Fittingly, the release date coincided with Drupal’s sixth birthday.
New features added

Status page and requirement checking: added a status report page with detailed PHP/MySQL/Drupal information and requirement checking.
Web-based installer: added web-based installer that checks run-time requirements and that supports pre-made install profiles or distributions with better support for […]

OK … no “bring on the clones” references (oooops … to late)
New Joomla Component to simplify the process of moving a Joomla installation to a new host. I haven’t tried it but features and reviews look pretty darn good. Anything that simplifies adminstration is fine by me.
 Backend Features:
- Create full or partial backups based on your […]

Where to start when selecting a CMS? 

For hands-on demos for a multitude of Open Source CMS: check out opensourcecms.com
For side-by-side comparison of CMS, check out: smatrix.org

Joomla! (yes, the emphatic ! is part of the name) is a vibrant, full-featured, Open Source Content Management System (CMS) and a very energetic development community. Lots of great extensions, most of them free, some for purchase but tend to be low-cost. See Joomla! (new window)

New extension just out of the gate that archives previous versions of content. Help prevent those “ooops” moments when editing copy. See Versioning (new window)