Well, i have tried almost every method for backlinks except blog commenting. I am a bit hesitant about it because there is an uncertainty if your comments would be approved by the admin or not. There are no rules and regulations involved in it. I know, you have to make the relevant comments but the question is, would you allow anyone to leave comments on your blog when you know that someone is trying to get a backlink from this comment especially when you worked hard to achieve that page rank. So do you think this technique is really worth trying?