So, being that I intend to stick a megadungeon in my game, what megadungeons do I need to look into?
I've read all of James Maliszewski's Dwimmermount posts.
I've read the gathered snippets of Greyhawk Castle over at Greyhawk Online.
I've checked out the free preview of Stonehell, and I'm planning to snag the full version soon.
I've downloaded (but not yet read) the PDF of Castle of the Mad Archmage.
I have also queued up the Megadungeon Resources at Beyond the Black Gate.
And I'm still reading the assorted Undermountain boxed sets and Dragon articles about it.
Any others I missed that I shouldn't have?
I'm not trying to be completist or a buy them all, I just want to know what directions people took the megadungeon concept before I settle on my own approach.
Editing later: I've also got a copy of the World's Largest Dungeon to look at. It's not ideal (the maps are a bit too . . . sectional) but I've got it.