Every day, millions of online diarists, or “bloggers,” share their opinions with a global audience. Drawing upon the content of the international media and the World Wide Web, they weave together an elaborate network with agenda-setting power on issues ranging from human rights in China to the U.S. occupation of Iraq. What began as a ...

TWO CENTURIES ago Henri de Saint-Simon, a French utopian, proposed a new religion, worshipping the godlike force of progress, with Isaac Newton as its chief saint. He believed that humanity’s sole uniting interest, “the progress of the sciences”, should be directed by the “elect of humanity”, a 21-member “Council of Newton”. Friedrich Hayek, a 20th-century ...