well, my logic tells me that sites generating figures that are statistically significant in their correponding field are being considered... These sites don't have to be 'HUGE'... perhaps couple hundred clicks a day... Any sites with 10k page views & 3.5% can generate that number of clicks.
I would say at least 4% of the AdSense partners are picked as samples for this panel...
Why did you ask? R there people u know being asked to become the research panel?
[edited by: irock at 1:31 am (utc) on Sep. 21, 2003]