If you aren't already familiar with OpenSourceCMS.com, stop by and check it out! glFusion has just been added to their list of hosted demo sites. OpenSourceCMS.com is a fantastic resource for anyone wanting to try all kinds of open source systems—from content management systems to news portals, blogs, e-commerce, groupware, forums, e-learning... the list goes on.
While you're there, take a look at the other fantastic open source projects out there! It's always inspiring to see how developers from all across the world are working together to build great software for the common good.
CHECK IT OUT: glFusion on OpenSourceCMS.com