Technique started with Movable Type for Blog Thread notification.
http://www.movabletype.org/trackback/
http://www.movabletype.org/trackback/beginners/
http://www.dashes.com/anil/index.php?archives/005482.php
http://cruftbox.com/blog/archives/000609.html http://www.cruftbox.com/cruft/docs/trackback.html
http://ropine.com/essays/trackback.html
Free server to manually enter ping to send http://www.reedmaniac.com/scripts/trackback_form.php
Py Thon implementations
In Type Pad and Movable Type blogs the TrackBack URL to ping is within the RDF Description: 'trackback:ping="(url)"'
concerns http://daringfireball.net/2003/06/take_your_trackbacks_and_dangle.html
response http://w6daily.winn.com/001456.html
see also Ping Back http://ln.hixie.ch/?start=1032794857&count=1
http://www.intertwingly.net/blog/864.html
kinda like Back Links, but not limited to Wi Ki
I think trackback's would be a great alternative to Sister Sites. See http://www.spack.org/index.cgi/WikiTrackBack --Adam Shand
what's cool about Sister Sites is that it doesn't require any work. Once you define the sites to check, and you view a page for which there's a page with the same Wiki Name on a sister site, a link appears automatically.
Totally agree, the automation is useful. However TrackBack's for user managed interlinking is really useful. Especially for linking content to blogs or commercial services (eg. if Ama Zon does indeed allow reviews to be linked in via TrackBack's etc). --Adam.