It is a common misconception that "Googling" a search term will reveal EVERY site out there on the Web. In fact, search engines like Google, or Yahoo or Bing actually only access a tiny fraction of the Internet!

What you are accessing is called the surface web of indexed pages that a search engine's web crawlers are able to retrieve. So where is the rest?

The vast majority of the Interent lies in the Deep Web or Invisible Web. Some experts report that it may be more than over 500 times the size of the visible web that we know. Surface web pages can be indexed by search engines. Subscription or proprietary information sources, like databases are an example of the Invisible Web.

Some examples of other Invisible Web content include the following:
  • data that needs to be accessed by a search interface
  • subscription-only information or other password protected data
  • pages that are not linked to any other pages
  • content that requires a CAPTCHA technology
  • text outside of exists outside of the conventional http: or https:

Just as the Invisible Web content is not traced by Web crawlers, it can't be accessed by conventional means. One way to access deep Web content, is through the school district databases, LAPL databases, universities and research facilities. Or ask a librarian.

Here are some suggestions to help locate the Invisible Web.
1. Internet Archive,, access to live music, audio, text, and home of the Wayback Machine that will allow you to search old historic versions of web pages
2. Clusty,, a metasearch engine that combines the results of several search engines together in the results
3. Ixquick,, another metasearch engine that will yield different results on your search
4. Zapmeta,, another metasearch engine to investigate
5. The WWW Virtual Library,, the oldest catalog of the Web started by Tim Berners-Lee, with quality standards in place

STEAM,, a portal with access to numerous scientific journals and databases
2.,, a gateway to authoritative science published by U.S. Government agencies
3. USGS Earthquake Hazards Program, http://earthquake,, includes real time earthquake data from the United States and includes maps of California, Nevada, and the World
4. Guggenheim Museum, http://www.guggenheim,org/new-york/collections/collection-online, a collection of artists searchable by name, title, date, medium, concept and museum
5. The National Gallery of Art,, a searchable catalog of all of the museum's over 100,000 objects with thousands of images

1. The Online Books Page,, a searchable database of more than 25,000 free online full text titles
2. Project Gutenberg,, a searchable online catalog of over 19,000 free books that are downloadable
3. Searchebooks,, search for titles of free downloadable ebooks
4. The National Academies Press,, searchable directory of over 3,000 free ebooks online
5. Bibliomania,, searchable free online literature from more than 2,000 classic texts