Yeah, Im wondering about displacement maps too...
Does anyone here know some good tutorials or what? I dont really get what your supposed to do when you see

Displacement ______________________ (checkered box)

... are you supposed to use a 2d or 3d displacement map for it? maybe even sutff like "brownian" or "tiles"?

Im really lost and also the thread creater(sorry, forget your name) is too, so please respond soon