A Beginner’s Guide to TrackBack
TrackBack Explanation by Mena and Ben Trott
http://www.movabletype.org
— this is just a verbatim copy of the article located at six apart site.
I copied it here for my convinience cause original page is flooded by numerouse test pingback comments what is driving nuts my browser and myself because it loads/renders very slow.
unfortunately, WordPressMU yet does not allow to make static `pages` private (only password protected), so I had to make it a private `post` — have no desire to remember another password.