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Deep Linking

Deep linking occurs when one web page includes a hyperlink to a web page that is buried deep within another site, i.e. not to the other site's homepage. 

In the early stages of web development, linking was embraced as essential and recognized as an indispensable guide to mapping cyberspace. As the Web has matured, however, deep linking has become controversial.

While many companies welcome visitors who stumble upon one of their pages, regardless of whether or not it is their homepage, other companies feel that deep linking is illegitimate, a technique that unfairly bypasses a site's front door.

Popular cases include Microsoft sued by Ticketmaster.com in 1997. Ticketmaster.com suing Ticket.com. E-bay and Universal Studios have also declared deep linking to their webpages as illegal.

(Excerpted from: Computer Science Illuminated by Nell Dale and John Lewis)