B-List

COLOURlovers
  <http://www.colourlovers.com/>
"a resource that monitors and influences color trends."

It mostly looks at the use of colour in design, but it covers other
colour-related issues.  I found the site via a link to this disturbing
article:
"The 7 Wonders of the Food Coloring World"
  <http://www.colourlovers.com/blog/2007/09/19/the-7-wonders-of-the-food-
     coloring-world/>

On a more positive note re food and colour, check out the
"Color Guide to Staying Healthy and Eating Right"
  <http://www.colourlovers.com/blog/2007/07/29/color-guide-to-staying-
     healthy-and-eating-right/>

There's also an article with photos of the recent "Northern Lights"
exhibit that was part of the Adelaide Festival of Arts:
  <http://www.colourlovers.com/blog/2008/04/14/color-from-the-adelaide-
     festival-northern-lights/>

Another interesting article is "Painting with Light":
  <http://www.colourlovers.com/blog/2007/07/09/colored-in-dancing-lights/>