I'm posting this so I don't lose the links when I need them.
Sean McGovern over at Power Score put up a post about Gary Gygax's character Mordenkainen. Sean seems to own everything and have read everything, but comes at it with a freshness as if he's just read all of it right now and was totally keen on telling you all about it.
Linked off of that post is a good one about Gary Gygax as a GM, and about encounters Gary used in Castle Greyhawk.
It's all my kind of post, and the type I tend to lose track of . . . unless I can search my own blog sure it's there someone. So I share with you so I won't struggle to find it myself.