An award-winning drawing program for children of all ages
Free drawing software for Windows, Mac OS X, and Linux
The free computer aided translation (CAT) tool for professionals
A very efficient tutor.
Colonize the New World.
Audio converter and CD ripper for various formats
Localization tools built by localizers for localizers
Free music notation & composition software
FCKeditor (retired)
Free and open source webmail software
Sudokuki is a free graphical SUDOKU game
A Logo interpreter and programming environment specialized for schools