Some related posts from Technorati and Google.

 [Antseyeview.com] Ant's Eye View: TrackBack: A Tragedy in Three Acts: Such is not the case: the official TrackBack blog hasn’t been updated in nearly a year, and their Professional Network lumps TrackBack spam in with comment ...

 [Optiniche.com] WordPress Trackback Tutorial - WordPress SEO and Blog Marketing: So many experienced bloggers who are technically ahead of the game are unable or unwilling to provide proper instructions for novice WP users. It’s so refreshing to find someone like you who wants to share knowledge without skipping over the basics.

Reflected tags on Technorati: Blog, Trackback Spam, Targeting Spam