For people who are ???? about color pencils.
A quick list of which brand uses which type of binder, sometimes with a description.
And more detailed descriptions of the feel and color richness of each brand.
Color pencil library: A forum thread about using color pencils, covering pretty much every topic about color pencils and then some general arty stuff. Has good threads about lightfastness, accessories (like pencil sharpeners), and efficient storage.