• Photoshop - Searchable database that may (or may not) answer your questions
http://www.adobe.com/support/products/photoshop.html

• American Institute of Graphic Art
http://www.aiga.org/

• San Diego Chapter of the AIGA - (well designed site w/ flash)
http://www.sandiego.aiga.org/

• ArtLex
http://www.artlex.com/

• Color Theory and Color Schemes
http://www.webthang.co.uk/tuts/tuts_graphics/graphics1/colour.asp

• Color Theory, Facts, and the Color Wheel
http://www.colormatters.com/

• Meaning of Color - a good place to begin...
http://desktoppub.about.com/cs/color/a/symbolism.htm

• Website Tips - Browser Safe Color Chart
http://www.websitetips.com/designer/colors1.html

• Webmonkey: web color, hex codes and other good stuff
http://webmonkey.wired.com/webmonkey/reference/color_codes/

• Named Web Colors and their Color Hex Values
http://www.w3schools.com/html/html_colornames.asp

• Hexadecimal Code Explanation
http://www.htmlgoodies.com/tutorials/colors/article.php/3478951

• Fun optical illustions
http://www.michaelbach.de/ot/

Copyright

• US Copyright Office - Copyright Basics
http://www.copyright.gov/circs/circ1.html

• Fair Use Law
http://www.benedict.com/Info/law/fairUse/fairUse.aspx

• Graphic Design Basics - general info on the elements and principles, as well as some useful links
http://www.graphicdesignbasics.com/index.html

• Elements and Principles
http://mundidesign.com/presentation/index2.html

• Arts Connected - simple, interactive lessons on the elements and principles (you may want to turn down your volume)
http://www.artsconnected.org/toolkit/explore.cfm

• Elements and Principles demonstration
http://wildlifeart.org/Rungius/intro_movie.html

• Graphic Design
http://www.allgraphicdesign.com/

• Communication Arts (CA)
http://www.commarts.com/

This is a short list... there are many out there!

• The Art Institute of Chicago
http://www.artic.edu/

• LA County Museum of Art
http://www.lacma.org/

• The Louvre - Paris
http://www.louvre.fr/louvrea.htm

• The Metropolitan Museum of Art - New York
http://www.metmuseum.org/

• The Museum of Modern Art - New York
http://www.moma.org/

• National Gallery of Art - Washington DC
http://www.nga.gov/

• San Diego Museum of Art
http://www.sdmart.org/

• Smithsonian - Washington DC
http://smithsonian.org

• Artchive - artist background info and artwork
http://www.artchive.com

• Webmuseum
http://www.ibiblio.org/wm/paint/

• World Wide Arts Resources
http://wwar.com/artists/