So is this trending toward 'I am mad my wife is cheating but I am LIVID that it is with a black guy' or is there some other insight to gain?
What acceptance are you after? Why should you accept being cheated on? She is cheating on you and that is not cool. You and she need to talk and explore your relationship and see what is concurring and work out what is healthy and proper for your both.
This is a cool porn site, a great discussion site, a hook up site for some (duh- she is cheating) and a site which attracts some nut jobs with a racial sexual fetishes. This site has much information, yet as far as answers you need, it might not be as good a resource as talking to your wife directly.