The term Deep Net (also referred to as the Invisible Net and the Dark Net) refers to the hidden internet content material not indexed by typical search engines. Some estimates are that the Deep Internet is 500 times larger than the surface Web (the visible Web). Feel of the surface net as the surface of the ocean-miles and miles of surface out there, as far as the eye can see. But when you cast a net, it goes below the surface and captures things unseen to the eye.

Why is the Deep Net invisible? Simply because its hard-to-come across web web pages and search engines:

Could have inadequate links to their content material

Need customers to register

Have spotty indexes to their content material.
For additional data on the Deep Web, check out the following websites:

deepwebresearch.information: monitors Invisible Net study resources and sites on the Net

brightplanet.com: collects identified, unknown, and hidden content material from formerly inaccessible net sources

completeplanet.com: a directory of more than 70,000 searchable databases, organized by content and topic categories.
The following are examples of Invisible Web individuals search databases:

411×411.com: Directory assistance and men and women search databases.

123people.com: Complete search engine that also pulls from Deep Internet sources as well. It also offers international searches.

pipl.com: An additional comprehensive search engine that pulls from Deep Web sources. You can search by telephone quantity, e mail address, even business names.

cvgadget.com: This has a uncomplicated interface-just plug in a name. The results are categorized by various Google search engine utilities (news, photos, documents, etc.). Other categories are listed by various social networking websites, blogs, enterprise networking sites, and so forth.
How can you dive into the Deep Web? Simple. Add The hidden wiki “search” or “database” (without the need of the quotes) to your queries to bring these hidden databases and directories to the surface.