Mission: Singapore and China are blocking certain net groups. I think this is a bad thing, question is how can we stop it? The Web was conceived as offering despots and dictators a choice between remaining in the dark ages and allowing freedom of speech. Blocking and filtering schemes threaten this ideal. Requirements: A scheme which makes blocking of individual IP addresses impractical. Architecture: The Web allows for proxies such as provided by the CERN server (and versions of Apache etc). A proxy server configured to accept connections from domains enforcing blocking (china, Singapore etc) can serve as a means of circumventing the restrictions. The problem then arises, how can the victims of censorship find out about the holes in the curtain? I believe that it would not be difficult to persuade large numbers of people to mirror a list of sites maintained at a central location. The blue ribbon campaign attracted a lot of interest on the same topic. Activity that brought to light the political aspect of Web censorship would help the domestic anti-CDA effort. Considerations: [i.e. areas needing brainstorming] 1) Copyright. Clearly copyright holders such as CNN etc would need to be involved. Although proxies have long been a part of the Web and the scheme does not threaten their interests it would be as well to get them on board at an early stage. 2) How can one prevent the proxies themselves being blocked? Some ideas that come to mind: 2a) Only issue new sites gradually so that blocking requires continuous updates. 2b) Use DHCP to change network addresses regularly. 2c) Some crypto hack I can't quite work out (hence the post to cypher punks). I can phrase the challenge more compactly though. We have two sets of opposed groups A and M. The A group wish to establish a continued conversation with groups B and C. M is willing to permit communication with group B but not C. Whenever M discovers that a member of group B is willing to act on behalf of group C, M transfers that member to the C group. The problem is to keep A's channels of communication open despite the efforts of M for very large group sizes. I'm not sure if this is a pure crypto challenge or a game theory problem. Comments? If people are willing to work on this I can provide some facilities and act as a media contact. Phill