diberry - 4:09 pm on Dec 18, 2012 (gmt 0)
Google is not simply reading/saving bulk of data-content on that page, itís learning deeply what the actual context on the page really is and how to classify it.
I'm seeing a lot of evidence of this in longtail search phrases. A couple of years ago, if searchers didn't use pretty much exactly some of the words on one of my pages, they wouldn't find me. Now Google is sending me relevant visitors for phrases that *mean* what my page is about but don't really match the actual words much if at all.
This is a good development. It could, however, mean we have to start thinking about keyphrases very, very differently.