Key Features:

• Flexible Menu Management
• Article Display Options
• Media Management
• Lots of Extensions and Plugins
• Fully Customization Layout Options
• User Management
• WYSIWYG Online Editor

More Features:

• Flexible layouts. Move modules around from one position to another with one hand tied behind your back!
• Expandable columns. When a column or row is empty, the remaining content moves to accommodate. This way your site always looks beautiful.
• Can turn the site off for maintenance easily
• Search-engine-friendly URLs
• Meta tags for entire site, and meta tags for each article (search engine optimization)
• User registration and permissions
• Can set up content editors who can only edit content from the frontend, and admins who can log in to the backend.
• Caching, to speed up your site, and increase scalability.
• Set when an article starts showing, and when it expires, automatically
  
• Multiple-file simultaneous uploading of media files
• A huge online community of plugins and extensions, such as:
  • Flash slideshows
  • Photo gallery
  • Shopping cart
  • Download backup
  • Real-time visitor stats
  • News portal
  • Social networking
  • Directory system
  • Form mail
  • Guestbook
  • Message board
  • Sliding tabs
  • Community system
  • Google Analytics integration
  • Online map directory
  • the list goes on forever, but you can browse the Joomla extensions directory to view them all! They're easy to install. Just upload the files in the admin backend, and you're done!

No Way!

The above barely touches the surface of this awesome system! Joomla is one of the most powerful CMS (content management system) on the planet. Give this system a test try.