En este tema les mostrare un poco de info acerca de esta web deep o "profunda internet"
Esta en ingles porque no tuve tiempo de traducirlo No hay mucha informacion acerca de esto en la internet superficial y creo que nada en español lo poco que hay esta en ingles. Ademas no voy a utilizar el traductor porque quedaria fuera de contexto.
The Deep Web (also called Deepnet, the invisible Web, DarkNet, Undernet, or the hidden Web) refers to World Wide Web content that is not part of the Surface Web, which is indexed by standard search engines.
Mike Bergman, credited with coining the phrase, has said that searching on the Internet today can be compared to dragging a net across the surface of the ocean: a great deal may be caught in the net, but there is a wealth of information that is deep and therefore missed. Most of the Web's information is buried far down on dynamically generated sites, and standard search engines do not find it. Traditional search engines cannot "see" or retrieve content in the deep Web – those pages do not exist until they are created dynamically as the result of a specific search. The deep Web is several orders of magnitude larger than the surface Web.
In 2000, it was estimated that the deep Web contained approximately 7,500 terabytes of data and 550 billion individual documents. Estimates based on extrapolations from a study done at University of California, Berkeley in the year 2000, speculate that the deep Web consists of about 91,000 terabytes. By contrast, the surface Web (which is easily reached by search engines) is about 167 terabytes (ESTO ES EL 95% DE LA INFORMACION ) O:
Deep Web resources may be classified into one or more of the following categories:
Dynamic content: dynamic pages which are returned in response to a submitted query or accessed only through a form, especially if open-domain input elements (such as text fields) are used; such fields are hard to navigate without domain knowledge.
Unlinked content: pages which are not linked to by other pages, which may prevent Web crawling programs from accessing the content. This content is referred to as pages without backlinks (or inlinks).
Private Web: sites that require registration and login (password-protected resources).
Contextual Web: pages with content varying for different access contexts (e.g., ranges of client IP addresses or previous navigation sequence).
Limited access content: sites that limit access to their pages in a technical way (e.g., using the Robots Exclusion Standard, CAPTCHAs, or no-cache Pragma HTTP headers which prohibit search engines from browsing them and creating cached copies).
Non-HTML/text content: textual content encoded in multimedia (image or video) files or specific file formats not handled by search engines.
Text content using the Gopher protocol and files hosted on the FTP protocol that is not indexed by most search engines. Engines such as Google do not index pages outside of the HTTP protocol.
Thankfully, gateways have been developed to mine these hidden troves. Think of them as database or search tool finders. Here are a few of the best:
Maintained by librarian Gary Price, this site provides direct access to the search interfaces of Invisible Web resources.
A Yahoo!-like directory of more than 10,000 specialized databases (business, legal, travel, etc.). Includes free- and fee-based resources.
Search forms and direct links to hundreds of search engines, from general purpose directories to niche topic indexes. Categories of databases include Reference and Research, Medical, Maps, Legal and Government.
"Invisible Web" Revealed
Danny Sullivan outlines new tools for searching the invisible Web.
Exposing the Invisible Web
Reference librarian Diana Botluk explores information stored in databases and how to access it
Supuestamente esta internet es utilizada por redes de narcotrafico, terrorismo, Hackers y prostitucion.
Pd: Si alguien tiene ganas (porque yo me tengo que ir) Puede buscar mas info y postearla ya que en mi opinion es un tema bastante interesante