JulianDay - 7:07 pm on Jun 6, 2005 (gmt 0)

I'd say raters are probably sent a list of random KW serps to rate.

Agreed - but it can't be that hard for the seriously savvy to manipulate the results in their own direction.

(I assume the human feedback feeds into the algo. Otherwise, what would be the point? There are far too many webpages out there to evaluate manually.)