KrisVal - 11:58 pm on Feb 8, 2005 (gmt 0)
I just had a similar thought. There has always been speculation about Google recording the clicks for a particular site. This update is one of the longest that I can remember and the results keep changing on different datacenters throughout the day. Is it possible that Google is A/B testing the update to see if CTR falls off for initial query? For example, on average how many queries does it take a user to find a website of interest? Results A = 1.5 Queries before a click while Results B = 1.75. Hmmmm.... If I were them, I would do that before finally rolling out anything. Choose the one with the best CTR.