dethfire - 6:19 am on Aug 23, 2013 (gmt 0)
I have come across a very successful site and I looked them up on ahrefs and I found they had an unusual amount of EDU backlinks. I checked the links and found they took advantage of thousands of professor blogs that had guest commenting. Usually these are international. I wonder if google has caught on or is giving credit to these EDU blog spammers? Apparently it still works considering the site is doing so well. thoughts?