yegg
I did have stuff like this at various other points. I backed off because it is a bit difficult to explain and Google is constantly changing their SERPs.

There are two ways I found that are pretty simple though, and I wonder what you think of those.

1) A query on Google that has a ton of ads above results, e.g. http://www.google.com/#hl=en&source=hp&q=mortgage&aq=f&aqi=g10&aql=&oq=&gs_rfai=CL58BoBaETN6UB6e-zgSht9GLBQAAAKoEBU_QgUcu&pbx=1&fp=ee367ffec58962d8 though one could argue the top ad is useful. 

2) I remove 60M spam domains from results. The problem is I'm sure Google removes millions as well.

I had done a bit of studying of Google Web spam and wrote it up here: http://www.gabrielweinberg.com/blog/2010/07/google-web-spam.html

The problem with that though is it says nothing of actual rankings, e.g. see comments at http://news.ycombinator.com/item?id=1552645

 
posted by yegg Staff7 years and 4 months ago Link