The beauty of wikipedia is that somewhere out there, there's someone obsessed enough with something to catalog it for the rest of the world. Take for example, this list of Crayola crayon colors. It has all 133 standard crayons and specialty colors also (including the scented crayons that include lumber scent) as well as a sample of what the color is.
As shown on digg, wikipedia even has a list of lists that contain lists.