Damn. I didn't want to appear to support the racist sites in any way at all, but:
I've been following the "Fight dem back!" blog for some time. On which he posts names and photos of accused racists, along with their histories, states/cities of residence and evidence of meetings that they attend. I can't recall him ever inciting violence, and the blog is being /.ed so I can't go back and check, but to be honest I wouldn't be surprised if someone found some examples which could be interpreted that way.
I find his blog interesting, which is why I've been following it for so long, and I don't object to what he's doing (indeed, I mostly support it - I certainly support why he is running it). And I'm not inclined to say that a direct comparison can be drawn between someone saying "go beat up X, because he's asian" and "Y has been inciting hatred". But it does make it a tad murkier if the good guys are engaging in some of the same behaviour as you are finding objectional when perfomed by the bad guys.