tedster - 3:38 pm on Oct 16, 2011 (gmt 0)
Wondering if there's some way to use that information to get a general trend of what searchers are doing, and whether they find the first pages of results worse.
I don't have any good ideas about how to measure overall SERP "quality" with access only to the level of data that I do. At a mass scale we'd probably need to combine data about traffic coming only from Google Search (who makes that available?) with SERP data of the kind that Searchmetrics and Systrix collect.
Other than a huge data mining project, we only have anecdotal measures from our individual sites. I've been noticing those "deep clicks" for several years and they really puzzle me. It doesn't seem like they could be real user behavior. Over the past couple years I've been suspecting some kind of automated activity - or possibly someone's MTurk job.