The World Wide Web has become a vehicle of free expression for millions of people around the world. It also represents a type of international library with no geographical or physical boundaries, bringing a vast array of information into private homes, schools and businesses. Because the Web allows anyone to post anything at any time, many believe some sort of censorship should be imposed. Censorship of the Web comes in the form of software which filters Web sites, blocking those which publish content deemed unsuitable by those administering the filtering software. Most content filtering software is used on computers in public schools, businesses, and libraries. The goal is to block sites that have no legitimate use in the workplace or in the classroom. These include sites promoting pornography, drugs, gambling, hacking, violence, and spyware among others (Sarrel, 2007).