Protecting speech on the global data networks attracts an increasing attention. The efforts and the corresponding abilities of governmental authorities, corporations and copyright enforcement agencies are countered by similar efforts and abilities of researchers and engineers to provide means for anonymous and uncensored communication, as Freenet, Free Haven and Publius. All three of them show a similar design. Content is split up and spread on several servers. When a file is requested, the pieces are reassembled. This design makes it difficult to censor content. All of these systems are not commercial products.
The most advanced system seems to be Publius. Because of being designed by researchers and engineers at the prestigious
For more information on Publius, see John Schwartz, Online and Unidentifiable? in: The Washington Post, June 30, 2000,
Freenet web site:
Free Haven web site:
Publius web site:
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According to social critic and philosopher
The system of the public sphere is extremely complex, consisting of spatial and communicational publics of different sizes, which can overlap, exclude and cover, but also mutually influence each other. Public sphere is not something that just happens, but also produced through social norms and rules, and channeled via the construction of spaces and the media. In the ideal situation the public sphere is transparent and accessible for all citizens, issues and opinions. For democratic societies the public sphere constitutes an extremely important element within the process of public opinion formation.
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Microwave transmission systems based on terrestrial antennas are similar to satellite transmission system. Providing reliable high-speed access, they are used for cellular phone networks.
The implementation of the
Internet exchanges are intersecting points between major networks.
List of the World's Public Internet exchanges (
Intelsat, the world's biggest communication satellite services provider, is still mainly owned by governments, but will be privatised during 2001, like
http://www.intelsat.int/index.htm
The RIPE Network Coordination Centre (RIPE NCC) is one of three Regional Internet
Registries (RIR), which exist in the world today, providing allocation and registration services which support the operation of the Internet globally, mainly the allocation of
http://www.ripe.net