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.
Even though I do not play dominoes much, I would think Dominoes might bring a new wave of people to this game site just to play dominoes! (which they would then see the rest of the site, and hopefully buy a membership.)