Check out the founders panel of the top five open source CMS platforms available, Drupal, DotNetNuke, Joomla, Umbraco, and SilverStripe.

They talk about where the industry is headed, the community driving the platform, and other topics. It's an interesting watch for anyone who works in the CMS industry, or wants to know more about the platforms.

This took place at the 2011 CMS Expo.