elsewhen - 9:17 pm on Mar 7, 2011 (gmt 0)

What I mean is ..if one looked at the "preview" and clicked through to the page ..they at least can assume it looks appealing / engaging ..too many ads may have reduced click throughs ..even while the page stayed high ..until the "appeal factor" data was folded into the mix.

great insight! i think it certainly belongs on the list possible signals of quality.