Social Source Commons

Flexible open-source content management and blogging software with an active user and developer community and a wide variety of plug-ins or extensions available.

Firefox is the popular open source web browser from Mozilla

Free/cheap Internet telephony and handy IM tool.

Full-featured open source office productivity suite, featuring word processor, spreadsheet, presentation, drawing and database packages; free MS Office replacement.

Open source constitutent relationship management system.

Powerful wiki software built to support the Wikipedia project

Hosted community blogging service.

A consortium supported email list/web archive designed for low bandwidth application in international development

Linux distribution with a very strong community

A freely distributed piece of software for such tasks as photo retouching, image composition and image authoring.

Integrated mail, addressbook and calendaring functionality to users of the GNOME desktop.

DidiWiki is a small and simple personal WikiWikiWeb implementation written in C. Its intended for usage as an ad-hoc PIM, useful for note taking, TODO lists etc.

mvnForum is an open source, powerful, easy to use, easy to setup bulletin board (forum) built on the Java J2EE technology (Jsp/Servlet). Great multilingual, multi-script possibilities.

Mailing list manager

Hosted online surveys

Dia is a program for drawing structured diagrams

LyX is the first WYSIWYM document processor.LyX is a document processor that encourages an approach to writing based on the structure of your documents, not their appearance. It is released under a Free Software / Open Source license.

Until now — and probably for a while in most heads — the GNU/Linux system at school has been perceived as a good replacement of other proprietary servers. However the server is probably the least important things in term of freedom in a school network

Pan is a powerful but easy-to-use newsreader for Linux, Windows, OS/X, and Unix. it supports traditional newsreading, and also yEnc, nzb, and other features for power users and alt.binaries fans. It's also the only Unix newsreader to get a perfect score o

gedit is the official text editor of the GNOME desktop environment.

A file viewer that runs under the X Window System on UNIX, VMS, and OS/2.

Ghostscript is an interpreter for the PostScript language and for PDF, and related software and documentation.

Primarily known as command line image manipulation tools for Linux, Image Magick includes a gui program called "display."

Tiki Wiki CMS Groupware is a full-featured, web-based, multilingual (35+ languages), tightly integrated, all-in-one Wiki+CMS+Groupware, Free Source Software (GNU/LGPL), using PHP, MySQL, Zend Framework, jQuery and Smarty. It is actively developed by a very large international community. Tiki can be used to create all kinds of Web applications, sites, portals, knowledge base, intranets, and extranets.

Tiki offers a very large number of features "out-of-the-box", arguably more than any other Open Source Web Application. Highly configurable and modular, all features are optional and administered via a web-based interface.

Major features include a robust wiki engine, news articles, discussion forums, newsletters, blogs, file and image galleries, bug and issue trackers (form generator), a links directory, polls/surveys and quizzes, FAQs, banner management system, calendar, maps, mobile version, RSS feeds, category system, tags, an advanced themeing engine (Smarty), spreadsheet, live support, shoutbox, inter-user messaging, menu generator, advanced permission system for users and groups, internal search engine, external authentication support, and much, much more.

Gmail is a web-based email with very user-friendly interface and huge storage capacity

KNotes, a nice and small tool to scribble down some notices.

VLC media player is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, ...) as well as DVDs, VCDs, and various streaming protocols.

Allow users to subscribe (double opt-in) to a CiviCRM group without creating a Drupal user. Upon entering an email address, the user is added to the group, but the do_not_email flag is set. The subscribe form sends out an email to confirm the subscription. And only after the special link in the email is clicked, is the do_not_email flag cleared.