Supports the development of a number of open-source software projects, including the apache webserver. Includes license information, latest news, and project sites.

Non-profit organization dedicated to eliminating restrictions on copying, redistributing, understanding, and modifying computer programs. GNU Project was begun to develop a complete free Unix-like operating system.

European branch of the FSF. Includes news and events listings, press information, and a document archive.

Not-for-profit organization that oversees the general development of XMPP and maintains the Jabber Enhancement Proposals.

A non-profit consortium dedicated to fostering the growth of Linux, and promoting standardization and technical collaboration. Provides details of activities and working groups, a collaboration forum, and developer services.

UK government portal which aims to encourage the use of Open Source Software by local authoritie. Offers opportunities for knowledge sharing and practical advice.

Dedicated to managing and promoting the Open Source trademark for the good of the community. Includes a definition of 'Open Source', and a list of approved licenses.

Distribution of open source alternatives to expensive commercial software packages, especially in education. Site shows current status, and how to help.

Not-for-profit organisation helping to accelerate, broaden and strengthen the use of OSS in business and government. News and events, information about OSS, and articles.

Aims to help organizations develop and distribute open hardware and software. Includes news, details of supported projects, and membership details.

Non-profit corporation dedicated to protecting multimedia from control by private interests, by developing free and open protocols and software. Information about the foundation and its current projects.

Contact info, architectural docs and a weblog on Extensible Messaging and Presence Protocol (XMPP), an open XML communications technology.