Here's a few links to some of the limited - but helpful and interesting - material here on the BDG:

BDG-101-part-1

BDG-101-part-2

BDG-101-part-3

BDG-101-part-4

Ryder Variation

Bill Wall game with the BDG

Some of my own games, mostly annotated lightly and synthetically:

http://www.chess.com/forum/view/chess-openings/blackmar-diemer-mayhem

http://www.chess.com/forum/view/game-showcase/blackmardiemer-mayhem-ii

Also, I am currently directing this tournament:

http://www.chess.com/tournament/blackmar-diemer-mayhem

I'm happy to post annotations (my brain only,I don't own/use an engine) for any of my finished games in the above tournament. See one that interests you? send me a link!