rbacal - 7:28 pm on Nov 14, 2006 (gmt 0)

I dunno about that; only one of my client sites would fall under that (only one has a privacy policy, or anything other than general contact forms and information) and none of my sites have been hit more than a couple of cents, either this past summer or last week. I think my opinion is closer to aeiouy's on this.

Multi interacting differentially weighted variables. Weights for each variable calculated dynamically depending on a number of other variables.

It makes algos exceedingly hard to game or manipulate, because you will NEVER see consistent outcomes, unless you have access to a huge amount of private google data.

One site will do x and it works. Another site will do x and it will do nothing. That's how multivariate stuff works.