Social Source Commons

Free file archiver with high compression ratio.

Open source software to create an activist network that includes people, groups, events, resources, and more. Ultimately the software creates a network of sites sharing activist data using a central database, and syndicated using web services. Any website can access the data (except one or two private things) using web services (SOAP).

Developers site: www.activismnetwork.org/developers

Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.

Open Source platform for Enterprise Content Management (ECM), providing Document Management, Collaboration, Records Management, Knowledge Management, Web Content Management and Imaging.

aMSN is an open source MSN Messenger clone, with features such as: display pictures, custom emoticons, multi language, webcam support, full-speed file transfer, chat logs, conferencing support, event alarms and more.

A relational database implemented entirely in Java

Ares is a free open source file sharing program that enables users to share any digital file including images, audio, video, software, documents, etc.

Open source PBX (phone system)

Free, open source software for recording and editing sounds.

A FOSS audio/video toolkit put together by the Tactical Tech. For the full version see http://audiovideo.ngoinabox.org

Azureus implements the BitTorrent protocol using the java language

Basebuilder is a database framework, like Microsoft Access or Filemaker, designed to help you build custom, web-based databases.

bbPress is forum software with a twist from the creators of WordPress.

Beautiful Soup is a Python HTML/XML parser designed for quick turnaround projects like screen-scraping.

Blender is the free open source 3D content creation suite

Buddi is a personal finance and budgeting program, aimed at those who have little or no financial background.

Burning application for Mac OS X

Campcaster is a free and open source automation system for radio stations.

Capistrano is a utility for automating the execution of tasks on one or more remote machines.

catdoc is program which reads one or more Microsoft word files and outputs text, contained insinde them to standard output

Chandler is a Note-to-Self Organizer designed for personal and small-group task management and calendaring.

Chandler consists of a desktop application and Chandler Hub, a sharing service and web application. You can also download and install your own Chandler Server.

Chandler is open source and standards-based.

Citadel is a complete and feature-rich open source groupware platform.

CiviCRM component for online donations

civicrm_activeuser is a simple module that adds a user to a group upon Drupal login.

Core components and third-party additions to CiviCRM

Hosted service of pre-configured Drupal and CiviCRM (free and low monthly fee versions)

CiviCRM component: Personalized email blasts and newsletters.

CiviNode exposes CiviCRM object types to Drupal as nodes.

Firefox extension that converts text to audio.

Conduit is a synchronization solution for GNOME which allows the user to take their emails, files, bookmarks, and any other type of personal information and synchronize that data with another computer, an online service, or even another electronic device.

Crystal Space is a free cross-platform software development kit for realtime 3D graphics and in particular games. Officially supports Linux, OSX and Windows.

Linux distribution with a very strong community

Deki Wiki is a free open source wiki and application platform for communities and enterprises.

A nonprofit service with moderate monthly fees and strong customization support. Online campaigns, donations, event registration, mail blasting, and basic member tracking.

Docebo is an e-Learning platform (LMS and LCMS) that supports 12 languages, is compliant to the SCORM 1.2 standard, and different didactic models. Including: Blended, Self-Directed, Collaborative and even Social Learning through Chat, Wiki, Forums etc.

Dokeos is a learning management system used in more than 600 companies and public administrations to manage e-learning and blended learning programmes.

Dotproject is a LAMP-based project management tool for the web

A distribution management system for print publications

Built on the popular Drupal CMS system, DrupalEd can be used as an informal and/or formal learning site where students, teachers, classes etc have comparable and/or hierarchical permissions.

The eCampaigning Tool for Plone enables the set-up and management of advocacy (campaigning) actions such as petitions, letters to targets, etc. It is designed around campaigning best practices and has a rich range of advanced functionality that allows for highly effective online actions.

An opensource Voice over IP phone allowing you to do free calls over the Internet.

popular and powerful text editor

Multipurpose Linux server software.

Less resource-hungry web browser on Linux

eTicket is a PHP-based electronic (open source) support ticket system based on osTicket, that can receive tickets via email (pop3/pipe) or a web form. It also offers a ticket manager with many features.

Web-based virtual desktop.

FeedAPI aggregates feeds on a Drupal website by generating light weight items or nodes from feeds. It provides a straightforward configuration for most use cases and is extensible through an API. FeedAPI integrates with OG (but does not require it).

apt-get ported to the mac with a large number of Debian packages

Firebird is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms.

Popular open source web browser from Mozilla

FlashDevelop is a .NET open source script editor designed mostly for Actionscript 2/3 development. FlashDevelop is very quick to setup and easy to use as an external editor for the Flash IDE or as a complete open source development environment.

Flyspray is an uncomplicated, web-based bug tracking system for assisting with software development. Kabissa uses it for managing issues with the Kabissa website content and technology.

Freedom Toasters are self-contained, computer-based, 'Bring 'n Burn' facilities

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

FreeNAS is a free NAS (Network-Attached Storage) server, supporting: CIFS (samba), FTP, NFS, RSYNC protocols, local user authentication, Software RAID (0,1,5) with a Full WEB configuration interface.

Based on the OpenWRT project, the Freifunk firmware brings easy OLSR support to MIPS-based consumer access points, such as the Linksys WRT54G / WRT54GS / WAP54G, Siemens SE505, and others. By simply flashing one of these APs with the Freifunk firmware, you can rapidly build a self-forming OLSR mesh. Freifunk is not currently available for x86 architecture machines. It is maintained by Sven Ola of the Freifunk wireless group in Berlin. You can download the firmware from freifunk.net

Project scheduling software (scriptable, cross-platform, and open source)

GeekTool is a PrefPane (System Preferences module) for Panther or Tiger to show system logs, unix commands output, or images (i.e. from the internet) on your desktop (or even in front of all windows).

Free Open Source Personal Finance Manager