DefectiveByDesign.org - Leads the fight against DRM, a technology aimed at restricting the rights of users through their own hardware.
DRM.info - Aims to promote awareness of the dangers posed by Digital Restrictions Management (officially known as Digital Rights Management).
Foundation for a Free Information Infrastructure - Dedicated to establishing a free market in information technology, by the removal of barriers to competition and working towards sane patent systems and open standards.
Free Software Foundation (FSF) - The official website of the GNU project. Dedicated to promoting computer users' rights to use, study, copy, modify, and redistribute computer programs. Promotes the development and use of free software.
The GIMP - The GNU Image Manipulation Program. Official site, including download area, documentation, FAQs, and a plugin registry.
HTML Slidy - A simple tool to make slide shows in XHTML.
hugin - Panorama Photo Stitcher - Allows you to assemble a mosaic of photographs into a complete panorama, stitch any series of overlapping pictures.
ImageMagick - For on the fly and batch image processing and conversion.
NoOOXML - An organization which aims to stop the adoption of OOXML as an ISO standard because it is based on a proprietary document format and depends on software patents.
OpenOffice.org - A fully featured office suite. Compatible with all other major office suites, free to download, use, and distribute.
Pidgin - An instant messaging client, which can handle multiple protocols and allows you to use all your IM accounts at once, including AIM, ICQ, IRC, MSN, Yahoo!, Gadu-Gadu and Google Talk.
Spread Open Source - A community based forum for the promotion of open source software and open standards.