^"Often promised, but often delayed, WORLD OF GREYHAWK sometimes appeared destined to never see the light of publication... Soon the summer was fast disappearing, along with most of our expectations, but on a fateful day in early August, the cherished cry was finally raised. THE WORLD OF GREYHAWK had arrived!"Seiken, Jeff (February 1981). "The Dragon's Augury: The Wait Was Worth It". Dragon (Lake Geneva WI: TSR) V (8): 48–49.
^Gygax: "I found out the maximum map size TSR could produce, got the go-ahead for two maps of that size, then sat down for a couple of weeks and hand-drew the whole thing. After the maps were done and the features shown were named, I wrote up brief information of the features and states. Much of the information was drawn from my own personal world, but altered to fit the new one depicted on the maps.""Gary Gygax: Q & A (Part IV, Page 11)". EN World. 2003-11-05. Retrieved 2009-03-15.
^Gygax: "When I did the map for the World of Greyhawk product I made up 90% of the material on the spot...and liked it better than what I had been doing so switched my own campaign to the newly created world of Oerth. Only the places surrounding the City of Greyhawk came from my original campaign setting.""Gary Gygax: Q & A (Part IX, Page 97)". EN World. 2005-08-24. Retrieved 2009-03-15.
^Gygax knew that Len Lakofka's first TSR adventure, The Secret of Bone Hill, was being readied for publication. It was set in Lakofka's home campaign setting of Lendore Island, so Gygax added that placename to the Spindrift Islands archipelago, and slyly added a reference to Lakofka in the description of the islands: "Lendore Isle is named for the Arch Mage who founded it, but tales of him and the fellowship he brought to the Spindrifts are all but lost."
^Ket was accidentally left out of the Table of Contents in the folio edition.
^Valley of the Mage was accidentally left out of the Table of Contents in the folio edition.
^Gygax borrowed the name of Dave Arneson's campaign world, Blackmoor, for one of his regions. However, his intention was not to move any part of Arneson's campaign to his own, and the Greyhawk region of Blackmoor bore no resemblance to Arneson's world, other than a sly reference to a ruined castle and "extensive ruins are supposed to exist under these ruins.". Gygax: "The Blackmoor on the Oerik maps is certainly not the same as Dave Arneson's campaign setting. I liked its ring, so I put it onto the map as I was making up names for the various states."Gary Gygax: Q & A (Part X, Page 7)". EN World. 2006-05-29. Retrieved 2009-03-15.