Game link/thread:
http://forum.realityfanforum.com/index.php/topic,32725.0.html
Diary rooms: http://rffbigbrother.proboards.com/
You will have to register/login on RFF to access the game thread. If you are interested in playing, please sign up and post there.
There will be a external proboards for private diary rooms and a chat (either slack or discord tbd) for all social aspects of the game. Competitions will take place in the linked thread above and they will be similar to what you see in the show; endurance, quiz, physical, group setting social interaction comps, etc.
