Comment spam losing grip to trackback spam

I have never seen this happen before on my blog, curious if others have seen something like this on theirs.

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  1. Bookmarks about Trackback on Monday, October 6, 2008 at 9:15 am

    [...] – bookmarked by 6 members originally found by gweir on 2008-09-21 Comment spam losing grip to trackback spam http://www.johntracy.com/blog/2008/07/10/comment-spam-losing-grip-to-trackback-spam/ – bookmarked [...]