Some good megadungeon links (and one bad one)

Benoist's discussion - http://www.therpgsite.com/showthread.php?21636-Advice-on-building-a-megadungeon-and-a-campaign-around-it/page3

Hack & Slash basic megadungeon play and procedures - http://hackslashmaster.blogspot.co.uk/2017/11/basic-megadungeon-play-and-procedures.html

Creighton Broadhurst Megadungeon Design - http://www.creightonbroadhurst.com/dungeon-design-megadungeon-design/

These guys all grok the procedural, partially randomised, nature of good megadungeon exploratory play, where both GM and players are playing to discover what happens.

This guy doesn't grok it at all, and tries to shoehorn a linear campaign into a Megadungeon environment -  http://theangrygm.com/category/megadungeon/ - as also seen in eg Wizards' 3e D&D "Expedition to the Ruins of Greyhawk"- good examples of what not to do at least long term. Setting a short linear adventure, like the Moria section of Lord of the Rings, in a largely unmapped megadungeon can work ok if the campaign focus is on something else. But a whole campaign of this control freak illusionism wastes the strengths of the megadungeon concept: the ability to provide limited but genuine choice/freedom.

DM David - http://dmdavid.com/tag/when-megadungeons-ruled-dungeons-dragons/

Edit: EOTB recommends http://knights-n-knaves.com/phpbb3/viewforum.php?f=28

Some good discussion of this post at http://www.therpgsite.com/showthread.php?38153-Some-good-megadungeon-links-(and-one-bad-one)