The EFF brings you Tor to improve your anonymity on the internet…
Tor: An anonymous Internet communication system
From the site: Tor is a toolset for a wide range of organizations and people that want to improve their safety and security on the Internet. Using Tor can help you anonymize web browsing and publishing, instant messaging, IRC, SSH, and other applications that use the TCP protocol. Tor also provides a platform on which software developers can build new applications with built-in anonymity, safety, and privacy features.
I have quite a few links saying not to use Tor for file sharing as the bandwidth will kill it. So don't do it… 
And the Evil Tyrant, seeing that Tor was good, praised the EFF for their mercy and wisdom in delivering it unto the multitudes.
Can I get an AMEN? 
July 13th, 2006
What a deal! I wonder if the NSA and others have found a way to get around it, or identify & block its use. It would not surprise me if such things were being investigated, or will be should Tor catch on with citizens tired of having to wonder if their every utterance and browse is recorded and scrutinized. I wonder how this might be marginalized by the multiple tier Internet the telecommunications companies and their supporters aim to implement. Overall, I find this an interesting and provocative response to the heightened awareness of privacy invasion by companies and the US government.