Wanna try a cool CMS tool ? I suggest you take a look at Orchard. It is a really well-built and powerful engine.
You can start by checking the Pluralsight courses available here.
If you feel comfortable enough, check the advanced course here.
As stated in the Orchard’s mission:
Orchard is a free, open source, community-focused Content Management System built on the ASP.NET MVC platform.
Orchard is built on a modern architecture that puts extensibility up-front, as its number one concern. All components in Orchard can be replaced or extended. Content is built from easily composable building blocks. Modules extend the system in a very decoupled fashion, where a commenting module for example can as easily apply to pages, blog posts, photos or products. A rich UI composition system completes the picture and ensures that you can get the exact presentation that you need for your content.
Orchard is delivered as part of the ASP.NET Open Source Gallery under the Outercurve Foundation. It is licensed under a New BSD license, which is approved by the OSI.