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Intro to TOR: how you can be an anti-censorship activist in your sleep
Here's a nice little introductory article on TOR, The Onion Router, a privacy-enhancing technology that helps you to circumvent national, corporate and school firewalls and enhance your anonymity. Originally developed by the US military to help communications get in and out of countries that heavily filter their networks, TOR is free/open software and is maintained by many volunteers around the world, including the Electronic Frontier Foundation.
TOR works by passing your traffic through several (theoretically) unrelated computers all over the Internet, using cryptography to keep the origin, destination, and intermediary steps secret from each computer it passes through.
You can run TOR on your own computers and they'll become part of this array of intermediary hosts all over the net, making your network connection into a tool for privacy and free access to information
via Intro to TOR: how you can be an anti-censorship activist in your sleep Boing Boing.