Several software packages have come and gone that let people surf the Net anonymously. What makes Tor different is that the Electronic Frontier Foundation is behind it. According to the Tor site:

...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.

While the software is touted as a means for keeping your identity safe from “companies, governments, and individuals that want to keep track of where people and organizations go and what they do on the Internet,” it will be tempting for employees to install the software so their employers won’t be able to record their online activities.