e.g.,
Google Mini: http://search.anandtech.com/search?q=ram&site=atweb_collection&client=atweb_collection&proxystylesheet=atweb_collection&output=xml_no_dtd

Google.com:
http://www.google.com/search?q=site%3Aanandtech.com+ram&sourceid=mozilla-search&start=0&start=0&ie=utf-8&oe=utf-8&client=firefox-a&rls=org.mozilla:en-US:official

Perhaps it's not surprising, but you have to wonder, which of those results is the most relevant?

one is based on pagerank taking the entire web as a whole, and one is based on internal differences in the pages.