Internet policy maven Rebecca MacKinnon warns that the liberating power of digital technology is under threat from corporations and governments. MacKinnon divides her book into five sections, clearly laying out the problem, with abundant illustrations taken from recent events. She argues that neither political action nor competitive pressure spawned by the free market will protect our rights, finally making a strong case for a third way - a nongovernmental watchdog with sufficient clout to preserve freedom on the Internet.