The Invisible Web
Hey Google Fans...did you know that you only have access to a teeny-tiny portion of the billions of web pages accessible on the Internet's World Wide Web.*
So when you do a Google search, you are actually only searching the surface of the Internet, a.k.a. the Surface Web.
Think of the Internet as a gigantic iceberg. The 10% showing above the water is freely accessible to any searcher looking for information on the Internet.