Mises.org is the .Net based CMS behind http://mises.org/ and similar organizations in many other countries.

Gruff is a beautiful graphing library for Ruby using RMagick. Plot multiple datasets in color or implement your own colorful theme.

Spring.NET is an application framework focused on helping build enterprise .NET applications. It provides a wide range of functionality such as Dependency Injection, Aspect Oriented Programming (AOP), data access abstractions, and ASP.NET integration. Based on the Spring Framework for Java, the core concepts and values found in Spring.Java have been applied to .NET....

Zikula is a Web Application Toolkit, which allows you to run impressive websites and build powerful online applications. The highlights are ease of use, quick and easy development, security and performance and lastly flexibility.

It provides you with a number of different tools to get a job done. Depending on which distribution you choose to run, Zikula could manage your blog articles, allow comments on your site, run a forum, downloads section or link directory or even handle static content in any number of languages....

py2exe is a Python Distutils extension which converts Python scripts into executable Windows programs, able to run without requiring a Python installation.

An otp centric build system for erlang applications.,

A collection of libraries and utilities for working with ELF object files and DWARF debugging information.

Lineage 2(c) server emulator written in mostly java.,

Zim brings the concept of a wiki to your desktop. Store information, link pages, and edit with WYSISYG markup. Creating a new page is as easy as linking to a nonexistent page. Pages are stored in a folder structure, like in an outliner, and can have attachments. This tool can be used to keep track of TODO lists or ideas, to take notes during a meeting, or to draft any other kind of text (blog entries, important email, etc.)....

Seafile -- Private cloud for Group file sharing and collaboration.,