Chairman Markey, Ranking Member Upton, and Members of the Committee. It is my honor to appear before you today to discuss the future of the World Wide Web. I would like to offer some of my experience of having designed the original foundations of the Web, what I've learned from watching it grow, and some of the exciting and challenging developments I see in the future of the Web.
The special care we extend to the World Wide Web comes from a long tradition that democracies have of protecting their vital communications channels. We nurture and protect our information networks because they stand at the core of our economies, our democracies, and our cultural and personal lives. Of course, the imperative to assure the free flow of information has only grown given the global nature of the Internet and Web. As a Federal judge said in defense of freedom of expression on the Internet:
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The success of the World Wide Web, itself built on the open Internet, has depended on three critical factors: 1) unlimited links from any part of the Web to any other; 2) open technical standards as the basis for continued growth of innovation applications; and 3) separation of network layers, enabling independent innovation for network transport, routing and information applications. Today these characteristics of the Web are easily overlooked as obvious, self-maintaining, or just unimportant. [2]
How did the Web grow from nothing to the scale it is at today? From a technical perspective, the Web is a large collection of Web pages (written in the standard HTML format), linked to other pages (with the linked documents named using the URI standard), and accessed over the Internet (using the HTTP network protocol). In simple terms, the Web has grown because it's easy to write a Web page and easy to link to other pages. The story of the growth of the World Wide Web can be measured by the number of Web pages that are published and the number of links between pages. Starting with one page and one site just about 15 years ago, there are now over 100,000,000 web sites[3] with an estimated over 8 billion publicly accessible pages as of 2005.
The universality and flexibility of the Web's linking architecture has a unique capacity to break down boundaries of distance, language, and domains of knowledge. These traditional barriers fall away because the cost and complexity of a link is unaffected by most boundaries that divide other media. It's as easy to link from information about commercial law in the United States to commercial law in China, as it is to make the same link from Massachusetts' Commercial Code to that of Michigan. These links work even though they have to traverse boundaries of distance, network operators, computer operating systems, and a host of other technical details that previously served to divide information. Mails from one country traverse borders with minimal friction, and the cars we buy work on any roads we can find. Open infrastructures become general purpose infrastructure on top of which large scale social systems are built. Having described how the Web got to where it is, let us shift to the question of where it might go from here.