I had a difficulty to rank for a specific keyword. Supposedly I was on the 2nd spot and then the site on the top spot has double listed! It's not one, not two, not three, but four double listed urls on the top of the SERP's. That means one domain name on the top 4 SERPs for a particular keyword. This phenomenon puts me on the 5th spot. My question is what is the best way to remove from the top spot double listed sites?