Hip-hop video blogger Jay Smooth has the goods on how to call someone out for saying something racist. Key point: Focus on what the person did or said, not on what they are. I.e., saying "You're a racist" is a dead-end argument.
I hadn't heard of Jay Smooth until a friend-inside-the-internet sent me a YouTube link to the above-linked video. I clicked through to Ill Doctrine and scrolled down to his theory about "Wall-E"...aaand then subscribed to his RSS feed. I need another blog to follow like a need a hole in the head, but then, one can always use an extra hole in the head for ventilation purposes, right?
Plus, it's a video blog, and the guy is kinda cute.