10. Causes of Color
This site will explain the different types of colorblindness. It is a great starting point for people who have no idea how or why colorblindness occurs.
9. Color Vision Testing
Want to take a test to see if you are colorblind? Take a look! And beware of the crazy image in the upper right corner.
8. Color Helper Software
This is a fat client (installed on your PC) software app that will open a new window. Within that window you can select a color or color range and the software will help you identify those colors.
7. Sim Daltonism
Got a Mac? Sim Daltonism is a color blindness simulator for Mac OS X. It filters in real-time the area around the mouse pointer and displays the result — as seen by a color blind person — in a floating palette.
6. Design for the Colorblind
In keeping up with the W3C website accessibility standards, this site explains some things that you can do to ensure you site is colorblind friendly.
5. Interview with a Color Blind Artist – Royce Deans
This is a good read about a colorblind artist who overcame his ‘disability’ and actually hangs his art in McDonald’s restaurants. NSFW Warning: Nudes.
4. Colorblind Painting Experience Methodoly (.PDF)
This paper was authored by J. Giribet and talks about being a colorblind artist and techniques to ‘correct’ improper colorations in his art.
3. ColorBlindArtist @ Blogspot
This is a seldom updated blog, but has some quality posts about another colorblind artist. I encourage you to write the author and ask that they continue to contribute their knowledge.
Daniel Flück deserves big props for keeping people in the know about colorblindness. Not only does he blog about his disability, but also about technology and how it changes the colorblind topography.
This web filter is a great way to expose your audience to what they see vs. what you see. I have often launched my online shop with and without the filter to show people the difference.