Marc Knobel is a French Jew who has devoted his life to fighting neo-Nazism, a fight that has taken him repeatedly to the Internet and American websites. In February 2000, Knobel was sitting in Paris, searching the Web for Nazi memorabilia. He went to the auction site of yahoo.com, where to his horror he saw page after page of swastika arm bands, SS daggers, concentration camp photos, and even replicas of the Zyklon B gas canisters. He had found a vast collection of Nazi mementos, for sale and easily available in France but hosted on a computer in the United States by the Internet giant Yahoo. Two years earlier, Knobel had discovered Nazi hate sites on America Online and threatened a public relations war. AOL closed the sites, and Knobel assumed that a similar threat against Yahoo would have a similar effect. He was wrong. AOL, it turned out, was atypical. Located in the Washington, D.C. suburbs, AOL had always been sensitive to public relations, politics, and the realities of government power. It was more careful than most Internet companies about keeping offensive information off its sites. Yahoo, in contrast, was a product of Silicon Valley’s 1990s bubble culture. From its origins as the hobby of Stanford graduate students Jerry Yang and David Filo, Yahoo by 2000 had grown to be the mighty “Lord of the Portals.” At the time, Yahoo was the Internet entrance point for more users than any other website, with a stock price, as 2000 began, of $475 per share. Yang, Yahoo’s billionaire leader, was confident and brash—he “liked the general definition of a yahoo: ‘rude, unsophisticated, uncouth.’” Obsessed with expanding market share, he thought government dumb, and speech restrictions dumber still. Confronted by an obscure activist complaining about hate speech and invoking French law, Yang’s company shrugged its high-tech shoulders. Mark Knobel was not impressed. On April 11, 2000, he sued Yahoo in a French court on behalf of the International League against Racism and Anti-Semitism and others. Yahoo’s auctions, he charged, violated a French law banning trafficking in Nazi goods in France.