Trackback is a means of notifying a website that another website has linked to it. By linking to a trackback link, a webmaster can automatically inform the other website that he has added a link to on [..]

TrackBack is a type of peer-to-peer communication system that was designed to send notification of updates between two Web sites via a Trackback Ping. Ping in reference to TrackBack refers to a small [..]

Automated notification that another website mentioned your site which is baked into most popular blogging software programs.

TrackBacks essentially provide a means whereby different web sites can post messages to one another not just to inform each other about citations, but also to alert one another of related resources. T [..]

Trackback helps you to notify another author that you wrote something related to what he had written on his blog, even if you don't have an explicit link to his article. This improves the chances [..]

 Trackback is a means of notifying a website that another website has linked to it. By linking to a trackback link, a webmaster can automatically inform the other website that he has added a link to one of site's pages.  

is an automated notification sent to a blog when another blog has linked to it. Trackbacks, when enabled, are typically seen in a blog post's comment section.

See backlink.