Digital Art
The Whitney Museum of American Art (Madison Avenue & 75th Street) - ArtPort
Pointilism and Cubism
Pointilism - Princeon article on Seurat: Color and Politics
Paul Signac: Red Bouy (1895) - Musee d'Orsay,Paris
Cubism - Picasso's Three Musicians
Color theory
Working with color: Color theory is a fascinating field where science and art meet; further information can be found at http://www.worth1000.com/tutorials/161595/color-theory and http://www.colormatters.com/colortheory.html among others and in many wonderful books.

For example, these are the three traditional pairs of opposite colors to use for contrast:

  red (primary color) and green (secondary color)  
  blue (primary color) and orange (secondary color)  
  yellow (primary color) and purple (secondary color)  
Working with Text &Graphics
Working with text and graphics: Medieval European Illuminated Manuscripts - The Hastings Hours - publication by Pomegranate Press
To see some wonderful Medieval manuscripts with many good examples of integration of text and images, see the collection at the Metropolitan Museum branch at The Cloisters ... the on-line collection of the French National Library ... and/or the Philadelphia Collection
Text and Page Layout
Poetry by e.e. cummings
Machine Translation
Using computing (Artificial Intelligence) to translate from one natural language to another: Babelfish (developed by Systran) and further information from the American Association for Artifical Intelligence on machine translation
Operating Systems
GUI (graphical user interface)
Command Line (text interface)
HTML / xHTML / CSS Resources
HTML Cheat Sheet
HTML Tutorial
Introduction to HTML: http://www.htmlcodetutorial.com/
HTML color: http://www.webmonkey.com/webmonkey/reference/color_codes/ and http://www.somacon.com/p142.php
HTML Special Characters: http://www.webmonkey.com/webmonkey/reference/special_characters/
Writing HTML (available in several languages)
CSS Tutorial and CSS Examples from Zen Garden
Working with Sound
Notes on Embedding sound ... on audio file formats ... on audio sources ... and basic HTML for sound
"Star Wars" and other sources
more types of sounds
Examples of Flash in Hypermedia for class discussion and the New Grounds Flash Web Portal for inspiration!