I often see that websites rank with two or sometimes even three pages for some keywords. However, usually these are long tail keywords which are just not targeted a lot. In the past years I rarely saw this happening for the tough keywords. If so it was a temporary phenomenon so after a couple of days it went back to normal and even the highest authoritative sites had only one champion ranking. What is weird now that for my main keyword which is really really very very competitive (targeted by 500+ sites and a lot of marketers) there are four sites in the top20 which have each two pages each ranking. This situation is in place now since May, so for almost three months now. Does anybody else observe this and can somehow explain what is going on?