New in Joomla 1.6 is the ability to add new User Groups of your own. Enjoy todays Joomla 1.6 Quicklook: User Groups:

Joomla! 1.6 Quick Look: User Groups from Andrew Eddie on Vimeo.

You can see this Quicklook and further details at it's source, Andrew Eddie's site: http://www.theartofjoomla.com/home/36-quick-look/94-joomla-16-quick-look-user-groups.html