You would have probably heard or seen the Google Knowledge Graph . For starters, what this Knowledge Graph does is provide users with relevant info about search terms in right side of the page where usually the sponsored results would be displayed .
Say if you search for a place or popular personality , relevant info from wiki and other news sources will be displayed in a small box in right side of search results.
But this Knowledge Graph has gone to a whole new level with Olympics 2012.
Search ‘Olympics’ in Google search box and hit enter . In the search results right side , you can see a whole lot of information and real time updates from Google Knowledge Graph.
This article has written about this Olympics Knowledge Graph comprehensively .
The graph gives real time updates like forthcoming schedule , medals tally , results and few other information that every one of us like to know.
And finally they did the obvious , promote Google+ towards the end with a link to Olympics 2012 Google+ page.
This Knowledge Graph has the potential to make a lot of websites redundant and reduce it’s site traffic if implemented extensively , for instance wiki , imdb to name a few.