eXist-db is an open source database management system built using XML technology. It stores XML data according to the XML data model and features efficient, index-based XQuery processing.

eXist-db supports many Web 2.0 technology standards, making it an excellent platform and a powerful environment for the (rapid) development of web applications based on XQuery and related standards. Entire web applications can be written in XQuery, using XSLT, XHTML, XForms, CSS and Javascript (for AJAX functionality)....

LimeSurvey (previously known as PHPSurveyor) is a PHP web application that interacts with MySQL/MSSQL/Postgres to develop, publish and collect responses to surveys. There are several ways to insert data into the survey: either by a 'pretty' public screen which presents the question(s), or using a data entry screen. It includes the capacity to generate individual 'tokens' and branching and has numerous question types and basic statistics....

Lutece is a portal engine which allows you to easily create your websites or intranets based upon HTML,XML.. content. Lutece provides a user friendly interface for portal management and therefore no specific technical skills are required. It provides also JSR168 et JSR170 support....

urlgrabber is a pure python package that drastically simplifies the fetching of files. It is designed to be used in programs that need common (but not necessarily simple) url-fetching features. It is extremely simple to drop into an existing program and provides a clean interface to protocol-independant file-access. Best of all, urlgrabber takes care of all those pesky file-fetching details, and lets you focus on whatever it is that your program is written to do!...

Apache Commons Compress defines an API for working with tar, zip, ar, cpio, gzip and bzip2 files.

Epydoc is a tool for generating API documentation for Python modules, based on their inline documentation strings (docstrings). It produces HTML output (similar to the output produced by Javadoc) and LaTeX output. It supports four markup languages for documentation strings: Epytext, Javadoc, ReStructuredText, and plain text....

Marble is a Virtual Globe and World Atlas that you can use to learn more about Earth: You can pan and zoom around and you can look up places and roads. A mouse click on a place label will provide the respective Wikipedia article.

Marble is also a light weight generic geographical map component for use in your own Qt 4.x / C++ application. It is provided as a library, a QWidget and a KDE 4 KPart and hence can easily get integrated with KDE 4 or Qt 4 applications. By default MarbleWidget shows the earth as a sphere but doesn't make use of any hardware acceleration....

ManifoldCF is an effort to provide an open source framework for connecting source content repositories like Microsoft Sharepoint and EMC Documentum, to target repositories or indexes, such as Apache Solr. ManifoldCF also defines a security model for target repositories that permits them to enforce source-repository security policies....

Eclipse Mylyn to GitHub connector.,

Tremulous is a free, open source game that blends a team based FPS with elements of an RTS. Players can choose from 2 unique races, aliens and humans. Players on both teams are able to build working structures in-game like an RTS. These structures provide many functions, the most important being spawning. The designated builders must ensure there are spawn structures or other players will not be able to rejoin the game after death. Other structures provide automated base defense (to some degree), healing functions and much more......