All is Photoshop now.
The author created his basic world map with fractal terrain, but then he didn't know what to do with it.

I took his first creation (jpg file), and used ps to turn it into a black and white file that I vectorized in illustrator to make it a far bigger file. Then, back to ps. :-) I transformed the all thing into a realistic satellite map to have an overview of the future map (if I finish this satellite version I'll show it to the guild obviously;-)), cut several map layers to define frontiers and other important thing.

Then, for this one work, I use the basic sharp of the land and all elements are painted on the same layer.