Okay I came across this strange thing.. I have a .org domain and there's this .net domain having the same keyword as domain name.. I was on 2nd page 9th rank and the .net domain was on 10th rank.. I started making backlinks and I've been noticing that as I move up the serps the .net domain moves up too.. Like I moved to 8th rank the .net domain moved to 9th.. Now I am on 5th and the .net domain is on 6th.. That's really strange.. The .net domain was last updated in 2007 so I bet they are not making any backlinks.. Has anyone ever come across this? How to stop this? Because I am not giving someone the 2nd rank on 1st page of google for free!!