Yet Another Forum?
YetAnotherForum.NET (YAF) is The Open Source Discussion Forum for sites running ASP.NET. 100% written in C#.
YAF (pronouced like "laugh") is a unique combination of Open Source, Microsoft's .NET platform and an international collaboration of the .NET developer community.
Growing and changing daily, the YAF project is lead by Jaben Cargman of
Tiny Gecko. YAF runs on any web server that supports ASP.NET v2.0 (and above) and SQL Server. YAF is licensed under GPL.
If you want to download the regular Asp.Net Version go to the
CodePlex Project Page
DotNetNuke® Module
This is the DotNetNuke Module Version of YetAnotherForum.NET which runs YAF inside a Module (DotNetNuke 05.02.03 or higher).
ScreenShots

There is also a Second Child Module the
YAF What's New Module which shows The Latest Posts in a List
Features
Full Feature List here:
http://yetanotherforum.net/features.aspx
Demo Forum
A "sandbox" test forum is available here:
http://dnn.yetanotherforum.net/.
Community Support Forum
See a real live YAF Forum by visiting the Yet Another Forum.NET community support forum:
http://forum.yetanotherforum.net. Also, get your questions answered by the YAF community. Priority Support and Consulting Services
Yet Another Forum.NET is licensed under GPLv2. If this license does not fit your business,
please contact us.
Documentation
There is an ongoing project to document YetAnotherForum. Please visit the
YAF Wiki to view and support that effort.