Google incorporates new data into search results in real time by tracking and ranking updates to online content—particularly the thousands of messages that course through social networks every second.
People used to visit a page, click a link, and visit another page.
Now they spend a lot of time monitoring streams of data—tweets, status updates, headlines from services like Facebook and Twitter, as well as from blogs and news outlets.
The hard part about real-time search is figuring out the meaning and value of those rivers of information.
Social-networking messages value is as fast declining as the time required to be written. Google has to gauge their worth in seconds, or even microseconds.
Google uses special search algorithms and connects message content to the geolocation data that’s transmitted by smart phones and other mobile computers.
The location of someone sending a message can matter a great deal.
If you know that a person tweeting about a special event is close to the place where the event happens, chances are those tweets will be more valuable than those of someone hundreds of miles away.
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