graeme_p - 8:20 pm on Oct 11, 2012 (gmt 0)
@realmaverick, note that when you say four ads, that means only one large ad (160*600) partially above the fold, and one small ad (200*200) above the fold plus ad links and another large ad right at the bottom of the page.
I wonder how this treats adlinks? They do not take up space, but some people find them annoying...
One of the sites that moved past me for my highest traffic generating search phrase has a LOT more advertising, and two of them have banner ads across the top, so both had more above the fold advertising than me. Both have a lot less content above the fold.
Furthermore, I recovered this week. The ads have been as they were before the January collapse since June.
I also tried reducing the ads and moving them around, even removing them altogether at one point, to no effect.
Given all that, and the recovery, I wonder whether there was some other factor that changed on the 19th Jan?