A good friend on mine, Aaron Wall, posted on how search engines value sites.
Says Aaron: “Some people will claim that using searcher feedback as a baseline to help determine site quality is nonsense, but most of those people are probably launching new brands off of their old brands and current popularity, which make them much more likely to instantly get significant traffic / mindshare / linkage data.“
And I agree.
Notice the number of new sites that have few links, yet get top ten – within days.
It happens in the blogsphere all the time. Real traffic bursts triggering some kind of temporal algo, and user tracking analysis.