My competitor beat me up today, no matter I do everything better then him but that guy building links faster then I can count. After analyzed his links I find shitload of hacked site pr4-pr8 , trusted sites, somehow he embed his link, actually more then one link into page and somehow make it hidden at very clever way, he use css to move that links way out of screen to left, it's position -1000px or so to left So links are not hidden in Google blind eyes and he make this shit work. I already contact one web site with telling them about this what this guy did, and they remove links (they didn't even say thanks ) I'll try contact them again and ask them to complain Google or whatever about those sites. But What I can do, what you guys suggest, I'm 100% white hat on that site of mine and it's impossible to fight this guy. I already write Google about this issue as well but I would like to write his host and domain register about this guy, but they probably will ignore me if I don't know how to do it! Can you please help me out whit my options!