Interesting thread - I'll throw in my two cents:

1st, although our site features primarily white guys, one of our first models was black and didn't hurt us one bit, in fact we have gotten requests for more of him and will probably be filming him again soon.

2nd, I am shocked at the number of white models for whom on of the first words out of their mouth is that they won't perform with a black person.

3rd, I was actually told by an "industry" person that we should have a new black guy at least once every 6 months to not be considered racist.

4th, we have had several hispanic models, although they have all been white. One member actually emailed me questioning whether one model was hispanic because he didn't "look hispanic." Funny thing is, this same model had been sprayed down with brown by another studio to "look more hispanic" for the shoot.