The closes thing I know of is Porter's website. It has pictures and genetic information on a number of colored turkeys. He does not raise every color possible, so there is a knowledge gap there, but he provides enough information to get most people through most of the basic questions.
Every page on Porters website is a genetics lesson for those that want to learn. He added the genetics page too. Some people do not know about his Turkeys Genetics board on Yahoo.