Açık Kaynak İçerik Yönetim Sistemleri (CMS)

SITEFINITY

Kooboo CMS

Many people who have used Kooboo CMS 3.x before state that it “it is even easier than wordpress, and much more powerful”. Combining the two key benefits power and simplicity, Kooboo CMS 3.0 ideally fulfills the content management requirements of large multinational companies as well as popular users.
Kooboo CMS 3.0 is based on the ASP.NET MVC 3 framework.

http://kooboo.codeplex.com/

mojoPortal

mojoPortal is an extensible cross platform, cross database, mobile friendly, content management system (CMS) and web application framework written in C# ASP.NET. mojoPortal has many included features like Blogs, Forums, Event Calendar, Google Maps, Contact Form, Polls, Surveys, ecommerce & more. Easy to learn, easy to use, easy to extend.

http://mojoportal.codeplex.com/

dotCMS
Java Open Source Content Management System - Java  Enterprise Web CMS Content Management System
http://dotcms.com