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Quote:Internet censorship is spreading rapidly, being practised by about two dozen countries and applied to a far wider range of online information and applications, according to research by a transatlantic group of academics.

full article: http://www.ft.com/cms/s/1dbb5faa-d268-11...10621.html

Cyberspace freedom is a tangled web
http://www.ft.com/cms/s/1f03979a-d26a-11...10621.html
Repressive governments widen stifling techniques -
http://www.ft.com/cms/s/775d5b9e-d268-11...10621.html
Dissidents find ingenious ways to hide digital traces -
http://www.ft.com/cms/s/76817868-d268-11...10621.html
Turkey turns against YouTube
http://www.ft.com/cms/s/21304726-d269-11...10621.html
Great firewall of China
http://www.ft.com/cms/s/220c9ec4-d269-11...10621.html
Bid to browbeat Arab bloggers
http://www.ft.com/cms/s/413128ec-d269-11...10621.html

Quote:Dissidents find ingenious ways to hide digital traces -
http://www.ft.com/cms/s/7...db-a7c0-000b5df10621.html

According to this article and others that I've read, they are using TOR(The Onion Router)  to hide their digital traces.

However, an article from March 2 claims that TOR may have been compromised:

Quote:Researchers say they peeled The Onion Router


March 02, 2007 (IDG News Service) -- Researchers in the U.S. say they've successfully shown how attackers could compromise a network designed to make it harder to trace Internet surfers and the Web sites they are viewing.

The researchers, from the University of Colorado in Boulder, focused their efforts on The Onion Router (Tor) network. Tor software enables the creation of networks of servers that can send traffic over many different routes, masking its original source.

The network offers users a greater degree of anonymity, since Web sites record the IP address of a visiting machine, which could be linked to an individual user. Tor's creators say they were aware of the research, but...

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