Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
I noticed a Download Notation feature on one of the games. It would be very handy to have that for Backgammon too. A good file format is the .mat format (defined for the Jellyfish program but recognised by many others).