EditorialGuy - 3:22 pm on Jul 27, 2013 (gmt 0)
I too am very dissatisfied with how Google treats Amazon. As an example, I purchased a few products through Amazon this past couple of weeks. Even though the items were "sold and shipped" by Amazon, it took 2-3 business days just to ship the items. An item I ordered on the 25th, is also void of any tracking number. I don't know of any mom & pops that would drag their feet for so long on "in-stock" items. This is not a good user experience IMO, but a metric that Google appears not to track.
Google is a search engine, not a rating service. I don't recall anyone referring to, say, Panda 2.0 as the "time to ship update" or Panda 3.0 as the "restocking fee update."
The fact that Amazon rates high for so many terms probably stems from the fact that (a) it's a megasite with millions of pages and inbound links, and (b) its pages tend to be packed with content (such as user reviews of varying quality) that supply plenty of spider food for Googlebot.