The new feature presents users with information on a subject other users have looked up after running a search—almost like the “people who bought this also bought” feature on Amazon. In other words, it helps you drill down on a subject by pointing toward information other users picked after their preliminary search.
Google’s engineers say Knowledge graph builds on the “collective intelligence” of the Web, and reportedly say it’s a first step toward a Star Trek caliber computer. But with challenger Bing also updating its “social search” capabilities by tapping into the vast data of Facebook, Google might be at a disadvantage. Everyone knows Google+ isn’t exactly growing at warp speed.