The writer A.J. Liebling once said: "Freedom of the press is guaranteed only to those who own one." With the advent of the Internet, however, this is no longer the case—anyone with a computer and Internet access can create a website or post their views on virtually any topic. While many websites provide useful and factual information, others contain pornographic material. These sites are sometimes included in the results of searches on innocuous terms such as "toys" or "teenagers." Furthermore, some porn sites use web addresses that give no indication as to the content of the material, which can lead Internet users to enter those sites by mistake. Consequently, some people have expressed concern that children will be exposed to sexually explicit or violent material while using the Internet. In response to these fears, President Bill Clinton signed into law the Communications Decency Act of 1996. The...