According to an article posted on Fast Company, Google has acquired a little company called Metaweb which is going to change how Google works. 

First, entities are derived out of the many references to them. An entity is simply a single thing that many words on the net now refer to. The entities are built and stored in an open database called Freebase. These entities are smart, rather than boxes of associations to allow real usability in search strings. 

Freemind and the video uses the example of the search string: Actresses over 40 with a current movie living in New York City" Metaweb connects 3 entities: "actresses over 40", "Actresses in a current movie" and "Actresses living in New York City" and gives useable results. That search brings up 'about 157,000 results', most which are not focused on the search. The challenge will be how quickly the meta engine creates new entities and adjusts them with the constant flow of data.