Liberation vs. control in cyberspace -- Liberation technology / Liberation vs. control : the future of cyberspace / International mechanisms of cyberspace controls / Whither Internet control? / Liberation technology in China -- battle for the Chinese Internet / China's "networked authoritarianism" / Liberation technology in the Middle East -- Ushahidi as a liberation technology / Egypt and Tunisia : the role of digital media / Circumventing Internet censorship in the Arab world / Social media, dissent, and Iran's Green Movement / Challenges for international policy