Scarred Land's Wilderness & Wastelands: Finally, a campaign world book that understands what "Show 'em, don't tell 'em" means.
Johnn Four's NPC Essentials: Even knows how to use the PDF format correctly.
EQ RPG GMG: Neat setting, kewl items, powerz joo can make from skillz.
Cedric.
aka. Washu! ^O^