This is a resource I found for designing better websites. I took this from:

http://www.great-web-design-tips.com/ - a pretty straightforward url:)

NOTE: I did NOT write this post. I found it on Robin Good's post: How To Create A RSS Feed From Any Web Page (you can scroll to the bottom of this post for the link if you like.

An OS content management system (CMS) allows you to manage website text and images through a database. This typically means:
Quicker website setup
Completely flexible graphic design
Tools to easily update pages and navigation
Support for rule-based content (like events or news)
Community support and plug-ins

Comparing Open Source Content Management Systems:
- Joomla