Journey to the Internet's Depths
There might be a lot more (400 times more) information on the web than you can possibly uncover, mostly because you can't find it. Maybe it is time to update the old adage: "If a web site is published on the internet, but there are no links to it, does anybody read it?"
Experts estimate that the "surface Web" contains 1 billion to 2 billion documents, while the "deep Web" could contain as many as 550 billion. Put another way, the surface Web contains about 19 terabytes of information, while the deep Web contains about 7,500 terabytes. A terabyte is the equivalent of about 1,000 gigabytes. About 95 percent of the information on the deep Web is available to the public, but many surfers cannot find this data because it generally is not well linked across the Web. [ Newsfactor.com ]
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