Say hello to ProntoCMS a new open-source web content management system.
The project is hosted here: http://code.google.com/p/prontocms/
Pronto is built on ASP.NET MVC and uses JQuery and FCKeditor. It is very light-weight and ideal for small websites.
The code in subversion contains a couple of (very minimal) sample projects. Hopefully I will get around to writing some documentation soon.
Please take a look at the code and let me know what you think.