This is going to screw over so many mini-sites its not even funny. http://googlewebmastercentral.blogspot.com/2010/08/showing-more-results-from-domain.html Summary: If a site is relevant enough to the query being made, google will now show nothing but results from that one domain for the first 8 results, followed by a few others at the end from other domains. What does this mean?: Say good-bye to review pages, mini-sites article dir and other results that once would have been able to leech some traffic off of being 2-5 down from the #1 spot. They are now going to be pushed clear off page 1. What do you think it will mean for your site?