Here is a forum for working dobemans and they do allow litter anouncements. Be sure to check out any breeders tho before you settle on one. This board isn't as active as it used to be so there is another working board out there somewhere.
Working Doberman Forum at USADobermann.Net
You might check this out also. They have a "breeders to avoid" section. Maybe this is were everyone went???
Dobermann Review