This is a map of the internet. The bigger the circles are, the more web pages that page links too. The closer the circles are, the more links they share with each other.
See how even though Google is the biggest circle, there are still many more circles all of which vary in distance from Google meaning Google cannot see and link you too all of their web pages.
To explore the Internet Map in more detail, go to https://internet-map.net/
Google is just the tip of the iceberg of the web. Remember, the internet is a network of networks. Boeing has their own hidden web that is only accessible to Boeing employees. Hospitals save their medical records within their own network of networks. Even library catalogs are invisible to Google! In order to access these hidden websites, you must use different search engines such as CWU's OneSearch or the search engines from library databases.
For an overview of the different parts of the web, how we access it, and more on this beautiful infographic, go to http://www.elixirofknowledge.com/search/label/Dark%20Web
What is the Internet?
The Internet is a network of networks, computers communicating with each other and sharing information.
What is the Web?
The web is what we as internet users interact with. It is the documents from various computers (web pages) that are linked together.