In what some may see as a matter of semantics, Google has made a shift in how they name positions internally with the word search being replaced by the term knowledge. When I first read this I wanted to dismiss it but on second thought that would be pretty hard to do since Google makes almost all its money from search.
So why this shift in terminology from the search engine giant? It could be that the Larry Page era is truly about taking Google beyond the current confines of being just a search company. They have been trying this for a while with various product introductions and little if any true success especially in the area of social. Maybe the shift in titles is about a sea change in the organization to not think search first?