What does DDB stand for?

What does DDB mean?

DDB	Bitmap graphics Computing » File Extensions
DDB	Data Drain Bracelet Computing » Hardware
DDB	Deaf, Dumb, and Blind Community
DDB	Deep Down Below Miscellaneous » Science Fiction
DDB	Dental Devices Branch Governmental » FDA
DDB	Dependency Directed Backtracking Computing » General
DDB	Destruktief Deform Battle Miscellaneous » Science Fiction
DDB	Die Deutsche Bibliothek Academic & Science » Libraries
DDB	Dogue De Bordeaux International » French
DDB	Double Declining Balance Business » Accounting
DDB	Dropkick Da Baby Miscellaneous » Funnies