AxCMS.net is known as a powerful enterprise web content management system - with separated systems for managing the content and a second (or more in load balanced scenarios) for the productive environment.
With the version 9 they focused on the user interaction between the Editor and the content with the main goal being to improve the content handling and to shorten the time to market to a minimum.
Here is a video explaining the Silverlight Ribbon concept of AxCMS.net
More info can be found on AxCMS.net
About Mike Johnston
The link "AxCME.net" seems to be broken. You can get more information here: http://en.axcms.net/
Alexander