Adobe Kuler - Creating color schemes

For those who depend on color the get the job done, Adobe Kuler is a web-hosted application for generating color themes. One of the best color resources I've found.

Color in motion: Amazing

Color in Motion is an animated and interactive experience of color communication and symbolism. Created by Maria Claudia Cortes this engaging and interactive Flash presentation has technical info about the three primary and secondary colors, a lab to manipulate the colors and play with them, and the most wonderful videos where the "personified colors" represent actions related to the symbolism of each. It's an excellent resource about the impact color has on communication.