Chapter 1. Introduction

The World Wide Web has created an explosion in the availability of information, making vast amounts of content accessible from any computer connected to the Internet. Users can navigate between related sites or search for information in massive public indexes. Sites are available in hundreds of human languages and host all kinds of files, from plain text to sounds, images, and movies.

This wide interoperability and broad access was made possible through the use of two standards: Pages are formatted in HyperText Markup Language (HTML) and retrieved with HyperText Transfer Protocol (HTTP). These two standards can be implemented on almost any computing platform, from PCs to cell phones. A Web site creator can make a site public ...

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