Sgt_Kickaxe - 12:21 pm on Dec 5, 2012 (gmt 0)

Adsense ads cannot be crawled via a robots.txt directive:

They don't need to be crawled, or even parsed, to know the links are there and if they are there, like any other link, do they get a cut of the available rank assigned to them which, in turn, reduces how much the other links have to push?