Matt McGee reported last week that he noticed that a method where webmasters can see pages that Google places in its supplemental index appears to be disappearing from some of Google's data centers. Now he's spotted a comment at SEOmoz from Google
Like everyone else in the SEO community, we’ve been scrambling to deal with the recent blow of having supplemental results unlabeled and intermixed with the regular search results. We believe we’ve found a solution.
SEObook gets it's first update since November 2006.
Topical updates include:
Google PageRank
Google Supplemental Results
Google Filtering & Google Search Result Re-ranking
Ranking Search Results by Re-ranking the Results Based on Local Int