My colleague Rob Hof has been complaining about a new kind of comment spam at Tech Beat that appears to be personalized. It focuses on the content of the post. I have trouble understanding how spammers, working one blog at a time, can generate a return on such detailed work.
Now looks like it has something to do with viral marketing. In any case, it's clear the trend is on the rise. See the incredible story of the brand called Cillet Bang. (from David Weinberger) Congrats to Tom Coates for enterprising reporting. He links to an apparent apology from the Cillit Bang team.