Multimedia
Max/MSP - intuitive real-time audio development environment
Jitter - set of video, matrix, & 3D graphics objects for the Max/Msp
Pure Data (PD) - A real-time graphical programming environment for audio, video, and graphical processing Software by Miller Puckette.
Eyesweb - Program that detect movement
Vividas - full-screen, broadcast-quality video streamed over the Internet
loftcity - on line film & TV studio

Mobile
Flixwagon (2007) - Broadcast live videos from mobile phone

3D Modeling & Animation
Makehuman - Modeling of three-dimensional humanoid characters
Blender 2.3 - Modeling of three-dimensional humanoid characters
UnrealEngine2 (UE2R) - Rreal-time 3D rendering solution for desktop computing

Hypertext Editor
Storyspace
Card Shark

Blog Editor
Word Press
Movable Type 3.2

Technology
Photosynth - takes a large collection of photos of a place or object, analyzes them for similarities, and displays them in a reconstructed 3-Dimensional space.
VMware - virtual machines
Quiksee