Paul Baranowski is the creator of Peekabooty, a software application that allows users to bypass Internet censorship in countries where it is practiced. Mr. Baranowski was previously a project manager at OpenCola, where he built peer-to-peer systems on the Internet. He has also helped to build Internet protocol routers as a software engineer at Ennovate Networks. Mr. Baranowski has a master’s degree in computer science from the University of Wisconsin–Madison and a bachelor’s degree in computer science from the University of Central Florida.

William Baum is currently the Chinese Branch Chief at Voice of America, where every day he oversees fourteen hours of radio, television, and Internet broadcasts in both Mandarin and Cantonese. He began his career as a radio reporter and has since expanded into other media outlets. Mr. Baum has worked as the city editor of China News, as the operations manager for the International Community Radio Taipei, and as the news director at Metro Broadcast Corporation in Hong Kong. He attended National Chengchi University’s East Asia Studies Graduate School, as well as Washington and Lee University.

Ethan Gutmann is a visiting fellow at the Project for the New American Century. His book, Beijing Boot Camp, is to be published early next year. For the past several years, Mr. Gutmann served in Beijing as a senior counselor for APCO China, a leading public-affairs firm in that country. He has also served as the executive producer of Beijing Television and was a chief investigator for the America’s Voice television network in Washington, D.C. He has written extensively on security issues, the growth of Chinese nationalism, and the U.S. business situation in Beijing for a number of publications, including Investor’s Business Daily and the Washington Times. Mr. Gutmann received his bachelor’s and master’s degrees in political science and international relations from Columbia University.

Greg Walton is a research consultant focusing on the impact of high technology on human rights and democratic development. He is currently based in New York, where he is developing strategies with human-rights advocates to combat state-sponsored censorship of the Internet. Mr. Walton is an adviser to the Hacktivismo Group, an international group of hackers, human rights workers, and lawyers, and he also works with the exiled Government in Tibet by assisting with the development of digital communications and information technology security. Last year, he published a report documenting how technology developed by Western corporations for commercial purposes is being used by Chinese authorities to target and repress political dissidents.