suggest me well designed opensource web apps in .net

Question

I found architecture of Blogengine.net good and interesting. Are there other very well designed opensource web apps written in .Net ?

Answer 1

This should be what you're looking for: ASP.NET Open Source Projects.

It has multiple categories: Blogs, Content Management Systems, Controls, Toolkits, Frameworks, Forums, Galleries, Starter Kits, Wikis, Miscellaneous and Additional Projects links:

http://asp.net/community/projects/
http://www.codeplex.com/
http://csharp-source.net/
http://www.nopcommerce.com/ - Open source asp.net shopping cart application
http://www.codeplex.com/nexus - Open source igoogle/pageflakes like application

Answer 2

Check out PunBB.Net punbbnet.codeplex.com/ It's a simple, well-designed ASP.Net forum application done in C#. You will find the code very easy to follow.