Color Matters
   Explores the physiological and psychological effects of color and how it affects appetite, vision, sexuality, energy conservation and its relationship to architecture and interior design.
   http://www.colormatters.com/

ColorSpeak
   User-generated interactive database of color meaning and symbology.
   http://bulltown.com/colorspeak/1/

Computerized Simulation of Colour Blindness
   What do colour-blind people see? Interactive Java applets to demonstrate colour appearance.
   http://tsi.enst.fr/~brettel/colourblindness.html

Natural Color System
   Color communication in architecture, design, manufacturing, marketing, research and education. This international color order system is entirely based on how the human being perceives color.
   http://www.ncscolor.com/

The Colour Group of Great Britain
   An interdisciplinary society for those concerned with colour measurement, reproduction vision, and perception, with colour in lighting, architecture and art.
   http://www.city.ac.uk/colourgroup/index.html

The Meaning of Color for Gender
   The Meaning of Color for Gender paper, by Natalia Khouw. Includes numerous references on subject and contact information
   http://www.colormatters.com/khouw.html

The Psychology of Color and Sound
   Teachers.Net Lesson Exchange for public school teachers.
   http://teachers.net/lessons/posts/201.html