Python Development Environment (Python IDE plugin for Eclipse). Features editor, code completion, refactoring, outline view, debugger, and other goodies - check http://pydev.sf.net)

Grails aims to bring the "coding by convention" paradigm to Groovy . It's an open-source web application framework that leverages the Groovy language and complements Java Web development. You can use Grails as a standalone development environment that hides all configuration details or integrate your Java business logic....

Fedora is a community based Linux distribution, originated from the Red Hat Linux distribution.

Only free software packages are available in the fedora distribution. See
http://fedoraproject.org/wiki/Overview for more details.

iat (Iso9660 Analyzer Tool) is a tool for detecting the structure of many types of CD-ROM image file formats, such as BIN, MDF, PDI, CDI, NRG, and B5I, and converting them into ISO-9660.

The Template Toolkit is a fast, flexible and highly extensible template processing system. It is written in the Perl programming language.

rdesktop is an open source client for the Remote Desktop Protocol (RDP), which is used in a number of Microsoft products including Windows NT Terminal Server, Windows 2000 Server, Windows XP, and Windows 2003 Server. rdesktop currently runs on Linux and other Unix based platforms with the X Window System....

See: https://www.ohloh.net/p/struts2

Struts is a framework for developing Java EE web applications. It uses and extends the Java Servlet API to encourage developers to adopt an MVC architecture.

YetAnotherForum.NET (YAF) is a Open Source discussion forum or bulletin board system for web sites running ASP.NET. The latest version is ASP.NET v4 ith a Microsoft SQL Server backend.

OpenWrt is a Linux distribution mainly for embedded devices.

Instead of trying to create a single, static firmware, OpenWrt provides a writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application....

Ohcount is a source code line counter.

Ohcount identifies source code files in most common programming languages, and prepares total counts of code and comments. It can operate on single files or entire directory trees. Ohcount can produce line-by-line analysis of files for detailed debugging....