Google has just announced their new addition of real-time search. Although it will be implemented on the regular Google search over the next couple days or access Hot Trends on Google Trends to see a demo, you can also get real-time results on your Google search query by adding the parameter &esrch=RTSearch to end of your URL.
So a Google search “GM”,
I added the &esrch=RTSearch to the end of the search results URL:
And in the middle of the search results page, I got the screenshot posted above.
Also you can see real-time updates of web search here.