I dont think that Sierra offers a partner program.
Most amateur interracial sites do not.
I've also got
http://www.blacksteele.com if you're interested. It's not on the partner program yet, but I can rush it and give you a leak free tour this weekend.
You'll find a bunch of amateur interracial sites here
http://www.lanalovesblackcock.com/to...terracial.html
hit me up on icq 64614011 if I can be of any assistance