AllNewsManager.NET is a free news/article management system for ASP.NET sites. Written in C# ASP.NET, AllNewsManager runs on Windows web server and SQL Server.

The Community Kit for SharePoint is a set of best practices, templates, Web Parts, tools, and source code that enables practically anyone to create a community website based on SharePoint technology for practically any group of people with a common interest.

This area is used for providing information and discussions about the CodePlex website.

Xenta is an extensible enterprise n-tier application framework with multilayered architecture. It is an open source project and available for free. Developed in .NET/C# programming language. Initially targeted to web based solutions. Licensed under the MIT license.