ByronM - 3:33 pm on May 1, 2008 (gmt 0)

Not sure if its relevant but my google serps seem directly correlated to my natural traffic. By that i mean for X% increase in natural traffic i get x% boost in serps ratings. As soon as the natural traffic lowers the serps lower.

My guess is there is a new link for some hot deal site that has decent pr and i get that PR boost when googlebot finds that link however when the "algo" or "filters" actually process that link the position is re-evaluated.

It could also be reduced for sandbox/site age. We re-did the entire backend/site in february so it may be fluctuating on that note as well.

Either way, it seems very much trended against natural traffic for us. Yes, i also run google analytics.