Free software

Free as in "freedom", Free Software means software that's been licensed in a way that guarantees certain freedoms, namely those to use, modify and redistribute the software without asking requiring to be paid for or otherwise given legal permission.

See: http://fsf.org

Rough notes

Examples

Making a brochure (OSP)
Imagemagick
Protocols: OSC / UDP, Kinect (rental)
Audio
Evo Tutorials: Processing ()
Evo Tutorials: Kinect (3D Input)
Evo Tutorials: Animata (3D Models driven by (OSC) data) ... http://animata.kibu.hu/

NLTK
lxml

Applications

Alchemy http://al.chemy.org/ (Drawing Sketching)
Ardour (10 speaker setup)
Inkscape
Blender
gimp
kdenlive
Scribus
MyPaint
Audacity

Formats

SVG - Scalable Vector Graphics (vector format)
PNG - Portable Network Graphics (bitmap format)
IXR (multiple "raw" images that are composed to adjust)
Matroska
OGG: A multimedia "container" (like Quicktime or AVI), that can hold audio/video
Webm: A particular version of Matroska + VP8 video codec for publishing video online (contrast with MPEG4/H264)

Command line tools (& Libraries)

Imagemagick: the swiss army knife of images
sox: Sound Exchange -- tools for manipulating and generating sound files
ffmpeg tool for encoding and manipulating audio / video
gstreamer
melt / mlt
midge: Music notation (in a special text markup) to melodic MIDI
festival: Tools to convert text to speech (wav file), the tool is text2wave
psutils: utilities for manipulating PostScript files!
youtube-dl: youtube-dl is a small command-line program to download videos from YouTube.com and a few more sites