This is just great stuff here. I very rarely do a blogpost that just points to somebody else's blogpost, but Greywulf clearly put a lot of time, effort and thought into this, and it really set my own gears in motion. Quite frankly, I love everything about his Undungeon campaign setting. It's just a brilliant take on a post-apocolyptic fantasy setting that takes 4e's Points of Light to a dark conclusion.
Just brilliant. Posts like this are why I surf D&D blogs everyday. Diamonds in the rough.