Microsoft has posted a deep dive that explains a lot of what's going on



From Engadget:

Bing is taking better advantage of its entity relationship engine, Satori; as soon as the search tool finds a likely subject, it both displays an information tile and the most popular intentions associated with that subject. Look for the San Francisco Giants, for example, and Bing will offer search pages dedicated to scores or tickets. The technology is also clever enough to both expand and refine the list of intentions over time.

  Microsoft details Bing's improved 'Page Zero' search results