Bruns (creative industries, Queensland U. of Technology in Brisbane, Australia) presents a comprehensive study of collaborative online news production, and introduces the practice of gatewatching, as opposed to gatekeeping. He describes gatekeeping as a regime of control over what content is allowed to emerge in print and broadcast media, and gatewatching as "the observation of the output gates of news publications and other sources, in order to identify important material as it becomes available." Topics include participatory journalism and multiperspectival news, case studies from Slashdot, Indymedia and Wikipedia, P2P journalism, blogs, content sharing, news communities and news ownership, and gatewatching as a semantic metadata generation. There is no subject index. Annotation ©2004 Book News, Inc., Portland, OR (booknews.com)