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 more. Tor also provides a platform on which software developers can build new applications with built-in anonymity, safety, and privacy features.  
Your traffic is safer when you use Tor, because communications are bounced around a distributed network of servers, called onion routers. Instead of taking a direct route from source to destination, data packets on the Tor network take a random pathway through several servers that cover your tracks so no observer at any single point can tell where the data came from or where it's going. This makes it hard for recipients, observers, and even the onion routers themselves to figure out who and where you are. Tor's technology aims to provide Internet users with protection against "traffic analysis," a form of network surveillance that threatens personal anonymity and privacy, confidential business activities and relationships, and state security.
glitch p-udding:  
ultrafastx: Anonymity is fantastic and all that, but this made my browser slow to a craaaaaaaaawl when loading pages.
deathburger: My tired mind read that as "Tori Amos Internet Communication System".  
I was sitting here trying to figure out wtf one has to do with the other...
crataegus: Joke guaranteed to make enemies:  
What did Tori Amos say to her father?  
Daddy, f*ck me again. I need another hit album.
glitch p-udding: hmmm....crude and misinformed.  
nothing like making fun of rape victims!
cornpone: mine did too.
testicle: I hadn't seen this posted before, and I had a link and description all ready to submit.  
"Oh shit, I better search first."  
"Aww crap."