Why do you need to know this? Why not just make comment on a lot of blogs and wait for the traffic to flood back to your blog? Hmm, tell you why. If you add a comment like this “Great post, I will bookmark it and come back often” Then they will spam you. I do it all the time. I found a PDF file with some super content about this topic.
If you are a blogger and like to use commenting as a way to get real traffic back to your blog then you better download this file now. Read it and learn. You don’t want to be that guy – The spam guy even if that’s not your intent. Do it the right way from the start. It will save you a lot of time….