Since the beginning of the Internet there has existed another Internet known as the Invisible Web or the Deep Web consisting of billions of web pages that cannot be accessed via the usual browser looking for something new or different online.

Much of what exists on the Deep Web are Internet relay chat channels, file-sharing networks, trading sites and secretive online communities but even darker and more dangerous things can be found beyond the reach of everyday search engines. Some even believe there is living advanced, automated artificial intelligence lurking among the invisible.