JBoss Seam is a powerful new application framework for building next generation Web 2.0 applications by unifying and integrating technologies such as Asynchronous JavaScript and XML (AJAX), Java Server Faces (JSF), Enterprise Java Beans (EJB3), Java Portlets and Business Process Management (BPM)....

Sphinx is a tool that makes it easy to create intelligent and beautiful documentation for Python projects. Sphinx uses reStructuredText as its markup language.

Logback is intended as a successor to the popular log4j project. Both log4j and logback were founded by the same developer. If you are already familiar with log4j, you will quickly feel at home using logback.

Empathy consists of a rich set of reusable instant messaging widgets, and a GNOME client using those widgets. It uses Telepathy and Nokia's Mission Control, and reuses Gossip's UI. The main goal is to permit desktop integration by providing libempathy and libempathy-gtk libraries. libempathy-gtk is a set of powerful widgets that can be embeded into any GNOME application....

The Subversive project is a brand new Eclipse plug-in that provides Subversion support. From a user point of view, Subversive provides Subversion support similar to CVS support, which is already part of the standard Eclipse platform.

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. Struts 2 is the result of the merger of Struts and WebWork framework development. Some of its features are Spring integration, POJO forms, POJO actions, first-class AJAX support, stateful checkboxes, enhanced tags, and HTTP independent framework interfaces....

mplayerplug-in is a plugin for Mozilla to play videos embedded in a Web page. It uses Mplayer to process the video.

Rockbox is an open source replacement firmware for portable music players. It runs on a wide range of different models.

ArgoUML is the leading open source UML modeling tool and includes support for all standard UML 1.4 diagrams. It runs on any Java platform and is available in ten languages.

ArgoUML was installed half a million times during 2005 and is in use all over the world....

Sendmail is a remarkably flexible program, supporting many kinds of mail transfer and delivery including the overwhelmingly popular SMTP.