Blender is a free and open-source 3D creation suite. With Blender, you can create 3D visualizations such as still images, 3D animations, VFX shots, and video editing. It is well suited to individuals and small studios who benefit from its unified pipeline and responsive development process. Being a cross-platform application, Blender runs on Linux, macOS, as well as Windows systems.


Audacity is a free, easy-to-use audio editor and recorder. It is available for all operating systems. Look here for the complete list of features.

Blender is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License.

This Blender Basics Classroom Tutorial Book by James Chronister (3d edition) for Blender version 2.49
Free Freemind Tutorial on mind mapping. The document is a pdf that will be downloaded to your computer.

scribus Scribus Desktop Publishing Course.

GIMP originally stands for "General Image Manipulation Program".
Like Photoshop, GIMP can be used to process digital graphics and photographs. Typical uses include creating graphics and logos, resizing and cropping photos, changing colors, combining images using a layer paradigm, removing unwanted image features, and converting between different image formats. GIMP can also be used to create animated images using an improved layers method. The full capabilities of the GIMP extend much further, however, and include advanced image editing, manipulation, and professional graphics creation.

Gnu Cash Tutorial and Concept Guide
How to set up a mail server on a Gnu Linux System

The Inkscape tutorials are available in English, German , Spanish and French. Japanese and Norwegian are under translation.

Documentation for the Electronic Learning System Moodle
This tutorial is an introduction to the popular open source webbrowser Mozilla Firefox. The tutorial is available in multiple languages.
Complete tutorials for Open Office Writer, Calc, Impress and Draw. Open Office is a free and open soure alternative to Microsoft Office.
These three open source graphics and desktop publishing tools are free to use and redistribute. Learn to use them in this self-guided set of tutorials.
RSS (Really Simple Syndication) is a family of Web feed formats used to publish frequently updated content such as blog entries, news headlines or podcasts. An RSS document, which is called a "feed," "web feed," or "channel," contains either a summary of content from an associated web site or the full text. RSS makes it possible for people to keep up with their favorite web sites in an automated manner that's easier than checking them manually.

This tutorial is by Mark Nottingham and the reader is supposed to have some familiarity with XML and other Web technologies.

Mozilla Thunderbird is a free, open source, cross-platform e-mail and news client developed by the Mozilla Foundation. tThunderbird can manage multiple e-mail, newsgroup and RSS accounts and supports multiple identities within accounts.