BUT other than making the author of the post happy, the comment doesn’t give any direct benefit to you. Even if the comment is impressive and a reader clicks on the link, s/he is directed to your blogger profile. From here the reader may/may not visit your blog (and chances are further low, if you have a big list of blogs displayed on your profile page).
So here’s what you have to do;
While commenting on a Blogger blog, if the blog allows ‘anonymous’ comments, then along with the option “Anonymous” another option gets activated, which is ‘Name/URL‘. Select this option and write your name along with any keyword in the “Name” field, and type your blog/blog post url in the “URL” field, like this:
Name: John @ Exam Tips
And in case the blog doesn’t allow anonymous comments, then select the option “OpenID” and type your blog’s url in the appropriate field.
The benefits you get:
Although mostly BlogSpot blogs have “nofollow” associated with the commentator’s links, but some of them have “dofollow” too, so in that case the famous Google PR link juice is passed to your blog instead of your blogger profile. And sometimes Google even considers a nofollow link as a valid backlink and so your site/blog is now recognized better for a particular keyword.
Secondly as the comments remain forever in the blog, so they become a permanent passive source of traffic for your blog.