TRACKBACKS!

Many people are confused about what exactly TrackBack is and how you use it.

Trackback is used to linkback to another blog. A Trackback is simply an acknowledgment.
TrackBacks automate the interlinking of blog posts, but often don’t contribute to search engine ranking.

This acknowledgment is sent via a network signal (ping) from Site A (originator)
to Site B (receptor).
The receptor often publishes a link back to the originator indicating its worthiness.
Trackback requires both Site A and Site B to be Trackback enabled
in order to establish this communication.
Trackback does not require for Site A to physically link to Site B.

Trackbacks are used primarily to facilitate communication between blogs: if a blogger writes a new entry commenting on, or referring to, an entry found at another blog, and both blogging tools support the TrackBack protocol, then the commenting blogger can notify the other blog with a "TrackBack ping".

On ProBlogger, writer Andy Wibbells gave a pretty good explanation.

"You get comments right? Easy enough. You write a post on your blog. Someone reads it and thinks you’re either sliced bread or vile ooze and comments accordingly. Just like having a mini-guestbook for each post.

What if I want to leave a comment about your blog post on my blog? That’s where TrackBacks come in.

Let’s say I read something pretty fantastic on your blog and so I write up a post about on my blog: “Hey you gotta check this out, here’s a quote from it and here’s the link to it.” And I link to that particular post on your blog. And I click publish.

Unbeknownst to most, your blog platform - whether it is WordPress or Movable Type or TypePad, scans all the links in a post each time a post is published. It finds my link to your post and then goes out to your blog and checks to see if your post is accepting TrackBacks. If so, my blog sends a little ping! to your blog as if to say, ‘Hey! Andy’s talking about you over on his blog.’ and your blog answers the ping and says ‘Alright, I’ll make a note of it.’ And then your blog makes a little note on that particular post that in effect says, “Besides all these comments under this post, here’s someone talking about this post on their own site - and here’s the link to it.”

You don’t have to know how TrackBacks work in order to use them, you can simply set a post to be able to receive trackbacks and set your blog to send them when you publish new posts. Your blog platform should do all the heavy lifting and email you when there are new TrackBacks - just like it does when there are new comments to a post."

HOPE THAT HELPS!