Open Source Software

Wikipedia List of Open Source Software

Open Office Productivity Software

MoodleCourse Management System Introduction to Moodle Tutorial
SakaiCourse management System

Creative Technologies
TuxPaint great image editing software for kids
GimpImage editing software alternative to Photoshop
AvidemuxVideo editing software
BlenderAnimation software

Sound Editing, Converting and Recording
Audacity REcord and edit audio files
WinLAMEAudio converter for Windows
Switch Audio Audio converter

Assistive Technologies

Text@ Speech Voice recognition / Speech synthesis