Google has  acquired Metaweb, which indexes things or “entities” in the world.

In a video explaining what they do, Metaweb talks about how the internet is not just words and for search to be the most relevant, it should be able to determine the context of the search term.

Last year PC World authors even called Google’s approach to search “aging” and talked about the search giant’s strategic moves to revamp its algorithms using semantic search.

via Perfect Search