Colonel,
The postings on level titles as they relate to guilds got me thinking. In many campaign worlds there are "Mage Guilds," which I assume are modelled on historical guilds (somehow

). I have never really warmed to the idea of a Mage Guild, and there are none in my own campaign world, as it seems to me any locale with one would soon be a magocracy (to use a term from the DMG). My reading of the character to most Magic-Users (and by extentional illusionists) from the DMG section on acquiring spells is that they are rather protective of sharing information and stand-offish when it comes to anyone but their own apprentices.
Anyway, my question is what say you on the matter? Does Oerth have its share of Mage Guilds and, if so, where are they. What keeps them in check from forming a hegemony wherever they come into power?
Gray Mouser