Here’s only a quick extract of sites set up to blog-spam everybody. If any of the sites in this list try to add a trackback to your blog you should delete the trackback: its spam.
I’ve written their hosting provider, Liquidweb. Let’s see if they bother to do anything.
I’m sick of the instantaneous trackbacks from splogs that pick on a keyword and try to build an automated post around it while linking back to you. With all the brainpower at Google you’d think they could really lick this problem if they wanted to.