After much confusion and delays I finally figured out ow to use Trackbacks. I came to know about Trackbacks when sometime ago I got a notification from wordpress telling me that somebody had liked one of my posts and had tracked back to it !
Trackbacks are a good way to promote your blog. And they also increase the number of backlinks to your blog.
Using trackbacks is very easy. Easier than you thought. But you need to know a few things.
Read them here. (was the best resource I could find !!)

What does Wikipedia say ??
A Trackback is one of three types of Linkbacks, methods for Web authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking to, or referring to their articles.
A Trackback is an acknowledgment. This acknowledgment is sent via a network signal (ping) from the originating site to the receiving site. The receptor often publishes a link back to the originator indicating its worthiness. Trackback requires both sites to be Trackback enabled in order to establish this communication. Trackback does not require the originating site to be physically linked to the receiving site.
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”; the receiving blog will typically display summaries of, and links to, all the commenting entries below the original entry.







