Did you know that? If you change your normal Google search engine URL into
http://www.google.com/?hl=en
you will get a new type of search engine, a Knowledge Graph.
If you type into the search field e.g. Billy Connolly, on the right-hand side you will see his photo and basic info. On the left you will still see the regular results page.

Google+
http://edudemic.com/2013/02/a-handy-visual-guide-to-google/

And I understand Google is not the only one trying to develop this new type of search.
Try looking up Billy Connolly here.
http://duckduckgo.com/

And now for something completely different!
Try computational knowledge engine
http://www.wolframalpha.com/
and type in a question, like e.g.
What was the weather like in London on June 15th, 2010?
and see what happens.

Enjoy!