Collabor8r: A Place Where Teachers Can Bring The World Into Class Discussions.
Optical Illusions and Visual Phenomena
My YouTube channel featuring student videos.
LoseThos: a 64bit free open-source OS that might be an interesting experimental environment.
Ubuntu: a free, open-Source operating system.
OpenOffice: a free, open-source office suite. Now with comments!
VLC Media Player: a free, open-source media player that plays almost everything!