Popular search engines like Google or Bing index billions of websites. 
But as massive as that number is, it still 
 doesn’t include the “The Deep Web”. 
So what’s in the deep web?
The deep web is made up of flight schedules, financial information, medical 
 research and all kinds of materials that are stored in databases
which, for the most part, are invisible to general search engines.
While you're a student, it's useful because the deep web is 
 where you can find a lot of scientific research.
If you google professional athletes and concussions, you’ll get results from 
about.com, USA today, ESPN and other popular news sites. 
These’ll be great for background information. 
They’ll tell you about current debates and developments on this topic. 
But to find the hard science behind these news articles,
you'll need to use specialized databases to search the deep web.
You’ll find these databases on the libraries’ website.
So remember the results you get using general search 
 engines are great for background information. 
But when you go below the surface and travel into the deep web
you can find more specific information from more reliable sources.
Want to know more? Ask a librarian.
