What is backlink and how do we use it on blogger.com?

Backlink enable us to keep track of other pages on the web that link to our posts. For instance, suppose I write a blog entry that you finds interesting. You then goes to your own blog and writes a post of your own about it, linking back to my original post. Now my post will automatically show that your post has linked to it, and it will provide a short snippet of his text and a link to his post. What it all works out to is a way of expanding the comment feature such that related discussions on other sites can be included along with the regular comments on a post.

The backlinks setting can be found under the Settings > Comments tab, and consists of a single, simple option to turn it on or off:

Blogger default templates are already set up with the necessary code for backlink. However, if you have a custom template, or one of our templates from before this feature was launched, you will need to add the code yourself. Instructions for that are here.

Once everything is set up, you'll see a new link marked "Links to this post" next to the comment link for each post:

If you click that link you'll be taken to the post page, where the backlink are all listed beneath the comments. Clicking the triangles next to each link will display a snippet of text from the page linking to you, as well as some author and date information. Then select the blog and publish your post easily. That’s create a valuable backlink.  

I hope the post is help you all very much. Happy Blogging........