My favorite campaign setting for D&D is the Greyhawk. I have the 1983 set and look to it for ideas for my current campaign. Nothing brings back memories like that old gazetteer of information.
Over the years, my campaign has set itself apart from the World of Greyhawk in many ways. However, the Isle of Dread is common to both. Someplace south of the Isle is a magical anomaly that provides transit between these worlds.
I would like to do a Glossography and Guide to my world, but I guess I need a name first. The little things.