Semantic search improvements by Google

Google are improving their game. They know a good deal of information about us and many other entities we commonly deal with, and associations between entities. Therefore they can infer more useful search results from the usual thin stream of information we give in a search because the context of a search is much greater than what we type in. This should make for more accurate search results. However this could also tend to push the more interest results down the list, reducing the chance for serendipitous discoveries. Perhaps they can provide a serendipity slide control. Anyway, this also opens up a new frontier for SEO and dilutes a little the heavily abused priority attached to links. Good thing too.
Semantic search