DotNetNuke is the leading Web Content Management Platform for ASP.NET. The flexible, powerful DotNetNuke platform can function as both a web content management system (CMS) and application development framework for Microsoft .NET. DotNetNuke has grown dramatically because of the amazing group of talented and imaginative developers and programmers who have rallied around the platform.  The DotNetNuke framework was developed as an open source, community-driven project, and continues to thrive and benefit from an established and active group of users, developers, integrators and vendors. DotNetNuke comes loaded with a set of built-in features that provide exceptional functionality.  Site hosting, web design, content management, security, and membership options are all easily managed and customized through simple, browser-based tools.

Since its inception in 2002, DotNetNuke has generated a large, enthusiastic user community.  With over 6 million downloads and 850,000 registered users, vast numbers of applications built with DotNetNuke have been operating in production environments for years.  The code base has been continually improved with an eye on simplicity, extensibility and flexibility, and the result is a comprehensive, user-friendly framework appropriate for even mission-critical applications.  

 
Video Introduction to DotNetNuke