The Internet has become an invaluable and discipline-transforming environment for scientists and scholars. In 2004 Google began digitizing public-domain and out-of-print materials from several cooperating libraries in North America and Europe, such as the University of Michigan library, which made some seven million volumes available. Although some authors and publishers challenged the project for fear of losing control of copyrighted material, similar digitization projects were launched by Microsoft Corporation and the online book vendor Amazon.com, although the latter company proposed that each electronic page would be retrieved for a small fee shared with the copyright holders.

The majority of academic journals are now online and searchable. This has created a revolution in scholarly publishing, especially in the sciences and engineering. For example, arXiv.org has transformed the rate at which scientists publish and react to new theories and experimental data. Begun in 1991, arXiv.org is an online archive in which physicists, mathematicians, computer scientists, and computational biologists upload research papers long before they will appear in a print journal. The articles are then open to the scrutiny of the entire scientific community, rather than to one or two referees selected by a journal editor. In this way scientists around the world can receive an abstract of a paper as soon as it has been uploaded into the depository. If the abstract piques a reader’s interest, the entire paper can be downloaded for study. Cornell University in Ithaca, New York, and the U.S. National Science Foundation support arXiv.org as an international resource.

While arXiv.org deals with articles that might ultimately appear in print, it is also part of a larger shift in the nature of scientific publishing. In the print world a handful of companies control the publication of the most scientific journals, and the price of institutional subscriptions is frequently exorbitant. This has led to a growing movement to create online-only journals that are accessible for free to the entire public—a public that often supports the original research with its taxes. For example, the Public Library of Science publishes online journals of biology and medicine that compete with traditional print journals. There is no difference in how their articles are vetted for publication; the difference is that the material is made available for free. Unlike other creators of content, academics are not paid for what they publish in scholarly journals, nor are those who review the articles. Journal publishers, on the other hand, have long received subsidies from the scientific community, even while charging that community high prices for its own work. Although some commercial journals have reputations that can advance the careers of those who publish in them, the U.S. government has taken the side of the “open source” publishers and demanded that government-financed research be made available to taxpayers as soon as it has been published.

In addition to serving as a medium for the exchange of articles, the Internet can facilitate the discussion of scientific work long before it appears in print. Scientific blogs—online journals kept by individuals or groups of researchers—have flourished as a form of online salon for the discussion of ongoing research. There are pitfalls to such practices, though. Astronomers who in 2005 posted abstracts detailing the discovery of a potential 10th planet found that other researchers had used their abstracts to find the new astronomical body themselves. In order to claim priority of discovery, the original group rushed to hold a news conference rather than waiting to announce their work at an academic conference or in a peer-reviewed journal.

Free speech

The Internet has broadened political participation by ordinary citizens, especially through the phenomenon of blogs. Many blogs are simply online diaries or journals, but others have become sources of information and opinion that challenge official government pronouncements or the mainstream news media. By 2005 there were approximately 15 million blogs, a number that was doubling roughly every six months. The United States dominates the blog universe, or “blogosphere,” with English as the lingua franca, but blogs in other languages are proliferating. In one striking development, the Iranian national language, Farsi, has become the commonest Middle Eastern language in the blogosphere. Despite the Iranian government’s attempts to limit access to the Internet, some 60,000 active Farsi blogs are hosted at a single service provider, PersianBlog.

The Internet poses a particular problem for autocratic regimes that restrict access to independent sources of information. The Chinese government has been particularly successful at policing the public’s access to the Internet, beginning with its “Great Firewall of China” that automatically blocks access to undesirable websites. The state also actively monitors Chinese websites to ensure that they adhere to government limits on acceptable discourse and tolerable dissent. In 2000 the Chinese government banned nine types of information, including postings that might “harm the dignity and interests of the state” or “disturb social order.” Users must enter their national identification number in order to access the Internet at cybercafés. Also, Internet service providers are responsible for the content on their servers. Hence, providers engage in a significant amount of self-censorship in order to avoid problems with the law, which may result in losing access to the Internet or even serving jail time. Finally, the authorities are willing to shut websites quickly and with no discussion. Of course, the state’s efforts are not completely effective. Information can be smuggled into China on DVDs, and creative Chinese users can circumvent the national firewall with proxy servers—websites that allow users to move through the firewall to an ostensibly acceptable website where they can connect to the rest of the Internet.

Others have taken advantage of the Internet’s openness to spread a variety of political messages. The Ukrainian Orange Revolution of 2004 had a significant Internet component. More troubling is the use of the Internet by terrorist groups such as al-Qaeda to recruit members, pass along instructions to sleeper cells, and celebrate their own horrific activities. The Iraq War was fought not only on the ground but also online as al-Qaeda operatives used specific websites to call their followers to jihad. Al-Qaeda used password-protected chat rooms as key recruitment centres, as well as websites to test potential recruits before granting them access to the group’s actual network. On the other hand, posting material online is also a potential vulnerability. Gaining access to the group’s “Jihad Encyclopaedia” has enabled security analysts to learn about potential tactics, and Arabic-speaking investigators have learned to infiltrate chat rooms and gain access to otherwise hidden materials.

Political campaigns and muckraking

During the 2004 U.S. presidential campaign, blogs became a locus for often heated exchanges about the candidates. In fact, the candidates themselves used blogs and websites for fund-raising and networking. One of the first innovators was Howard Dean, an early front-runner in the Democratic primaries, whose campaign used a website for fund-raising and organizing local meetings. In particular, Dean demonstrated that a modern presidential campaign could use the Internet to galvanize volunteer campaign workers and to raise significant sums from many small donations. In a particularly astute move, Dean’s campaign set up a blog for comments from his supporters, and it generated immediate feedback on certain proposals such as refusing to accept public campaign funding. Both the George W. Bush and the John Kerry presidential campaigns, as well as the Democratic and Republican parties, came to copy the practices pioneered by Dean and his advisers. In addition, changes in U.S. campaign finance laws allowed for the creation of “527s,” independent action groups such as Moveon.org that used the Internet to raise funds and rally support for particular issues and candidates.

By 2005 it was widely agreed that politicians would have to deal not only with the mainstream media (i.e., newspapers, magazines, radio, and television) but also with a new phenomenon—the blogosphere. Although blogs do not have editors or fact checkers, they have benefited from scandals in the mainstream media, which have made many readers more skeptical of all sources of information. Also, bloggers have forced mainstream media to confront topics they might otherwise ignore. Some pundits have gone so far as to predict that blogs and online news sources will replace the mainstream media, but it is far more likely that these diverse sources of information will complement each other. Indeed, falling subscription rates have led many newspaper publishers to branch into electronic editions and to incorporate editorial blogs and forums for reader feedback; thus, some of the distinctions between the media have already been blurred.