I can say this much, about a month or so ago the three sets of kw phrases I search for on a daily basis returned more than double the number of SERPs. Mind you, these kw phrases are totally unrelated, as they are for three unrelated sites. Still, none of my positions in the SERPs changed beyond the normal fluctuation of a postition or two. So is everyone here suggesting that while the number of SERPs have increased the sandbox is still in effect? Or is it that not everyone is seeing this rise is the number of SERPs across the board?