Linking to a trackback, as opposed to just displaying the URL in some textual fashion round about the comments section of a post, is a bit of a problem in WordPress. This is because it doesn’t really take you anywhere, at least not in the way one tends to expect, if you follow the link. The point of a trackback URL is to—and hopefully this is obvious—send a trackback “ping” from somewhere else, preferably another blog. Doing anything else with it is like banging on a door with no house attached, and as far as WordPress is concerned this is a pretty stupid thing to do. So if you visit a trackback URL from a WordPress blog, WordPress assumes you’re more interested in the post it derives from, and redirects you to it.

All well and good for those who understand why it works the way it does: just right-click or hover over the link and perform a bit of copy/paste. But for anyone new to WordPress, or anyone not the least bit interested in anything but getting that damn link to show a Trackback!!!, this is a confusing way to behave. As mentioned above, one can skip the link method and just display the trackback URL raw, but some don’t find this a good way of dealing with it. And on sites with especially long URLs, it causes issues when the URL is wider than the blog’s content area.

Also of note is the wikipedia entry for Trackback

I also learned that Blogger does not support Trackbacks. They use a feature called Linkback but works only within Blogger.