walkman - 9:48 pm on Jul 22, 2011 (gmt 0)
Devil's advocate here: Isn't this useless for frequently changing pages? It takes loads of times to get enough traffic to test a page and by the time you are done it may have changed. Remember, Google has to 'see' the traffic too. How is showing junk scrapers on top quite frequently help Google, since this is an ongoing eval apparently?
Londrum, yes, I think that's what the random stuff appearing on page 1 is all about...mixing things up. Have you noticed SERPs are a lot less static than they usually are? That's what we're seeing, anyway. Google has done this before (maybe when college students got out of school? So they could randomly test SERPs?) but I think it's going to be the modus operandi for a while if Panda indeed draws from this patent.