We're familiar with the image of an iceberg. Only 10% is visible and the rest is out-of-sight.
If the web were an iceberg, Google searches the visible web and library resources are out-of-sight.
Plus, Google may find unreliable sources. Library resources including GALILEO are more likely to be reliable, credible, high quality & authoritative.
CNN has a useful graphic explaining the deep web. It also helps to explain what Google and other search engines find versus what is available in the deep web, which includes library resources.
Answered By: CTC Library Staff