trakkerguy - 7:41 pm on May 3, 2010 (gmt 0)
Are the sites that are rising any different in terms of content to those that are dropping and is that content more "sticky"?
Not in my case. My big site with good, sticky content has been dropping for various keyphrases. My little support sites have risen for same or other keyphrases. The ones that benefited all have "less sticky" content.
I do think it is intended to counter rank manipulation and present what they believe to be niche "info" sites, but isn't effective in my niches yet. For now, I'm starting to focus more on feeder sites.