rocco - 9:53 pm on Jun 10, 2008 (gmt 0)
The algo constantly changes - the goal stays the same: they want to present the best and most accurate info to the visitors. So build the greatest site and they are working for you at the plex trying to algo your site to the top. Of course you will not always be at the top, and that is why they tweak it. Building a site for the snapshot of the current state of the algo will keep you tweaking instead of them ... old news.