The World Wide Web is less like a network of heavily interconnected superhighways and more like a jungle of one-way streets often leading to dead ends, researchers now report.
Previous studies had suggested a much higher degree of linking between Web sites. One analysis, for instance, had estimated that two randomly chosen pages on the Web are, on average, only 19 clicks away from each other (SN: 9/25/99, p. 203).
In developing what they describe as the first comprehensive "map" of the World Wide Web, scientists at the IBM Almaden Research Center in San Jose, Calif., and their collaborators explored about 200 million Web pages and checked 1.5 billion links from one page to another.
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