Iranians find ways to bypass Net censors: Via Politics and Law - CNET News.

Some of the online restrictions appeared around the time of the election: that's when Facebook, BBC English (BBC Persia was already blocked), Technorati.com, and YouTube were added to the verboten-in-Iran list. One report says that YouTube's traffic from Iran has dropped by 90 percent in the last few days, and another says that Yahoo Messenger was blocked early Wednesday. Unconfirmed reports from Iran say Twitter.com is also blocked.

One way around the government's online blockades is to find the electronic equivalent of a detour, which involves using something known as a proxy server.

Here's how it works:
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