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.
Instead of scrabble, which you have to have a license to put it on your website. How about a game similiar to the 1 played at littlegolem.net. It's a combination of scrabble/boggle.