For those who spend a lot of time behind Google, there are some new features to
play with improve your efficiency at work.
After a search results are presented, the “show options” control displays more ways to narrow your search by types of info (videos, blogs, etc.), time (past 24 hours) and whether you already visited the page.
The “Timeline” shows a graph of the periods in history mentioned in the results.
And the “wonder wheel” presents you with related searches.
See story: Google offers search refinements