Other
Color Theory and Mixing: 16 Lessons in Color Theory
Complete site on using color in art. Includes the history of color, psychology of color, color perspective, and how color changes depending on the medium used. Includes activities to help understand how to use color in your art.
Other
Web Developer's Journal: All You Need to Know About Web Safe Colors
A site all about the use of color on Web pages and what works well.
Other
Web Developer: Neon Text in Photoshop
Step-by-step instructions on creating neon text in Adobe Photoshop, just like the neon signs in store windows.