0xDECAFBAD: I'd also like something that scans a blog entry I post for links, then investigate those links for Pingback/TrackBack availability - all to make the system even more automatic. I'm game. I've implemented it in Python. And written a Perl extracter or excerpts and pinger which uses takes advantage of this. I'll be testing it on this blog entry. Once debugged, I'll connect this to my publishing process (though a simple cron job would do) and forget about it. As Ben says, There is nothing inherent in TrackBack that makes it any less transparent to either of the users involved.
The previous sentence is in there just so I can get two trackback entries out of this.