trimmer80 - 1:55 am on Mar 19, 2004 (gmt 0)

>>>>So how do Google define "improvement"? There's no accepted metric for judging SERPs. Is it better if the PhDs at the Plex like what they're seing? If we at WW like it?

It has been suggested that improvement could be measured by the time spent on a site. This is sent to google throught the google toolbar.
If a search has position 1 - average time spent = 15 seconds , position 2 average time spent = 20 seconds. Then an assumption can be made that position 2 was more relevant than position 1.

The problem with this is that webmasters will start building confusing navigation and surfer traps to make them spend more time on the site.