In keeping with the topic of the day over at my other most favourite site on the Internet, LibrarianActivist, here’s a report on internet filtering from the National Coalition Against Censorship which is admittedly, a bit dated, having been produced in 2001. But it gives an excellent overview of many of the issues and problems being discussed in the wake of the LPL's board to look at increasing the use of filters in their library. And an update of the report in 2006 shows that the same concerns with internet filtering software remain to this day.

Here are some examples of what happens when you filter:

• CYBERsitter blocked a news item on the Amnesty International site after detecting the phrase “least 21.” The offending sentence described “at least 21” people killed or wounded in Indonesia.
• SurfWatch blocked the University of Kansas’s Archie R. Dykes Medical library upon detecting the word “dykes.”
• X-Stop blocked the “Let’s Have an Affair” catering company and searches for Bastard Out of Carolina and “The Owl and the Pussy Cat.”
• WebSense blocked a Texas cleanup project under the category of “sex,” and The Shoah Proj-ect, a Holocaust remembrance page, under the category of “racism/hate.”
• Cyber Patrol blocked a Knights of Columbus site and a site for aspiring dentists as “adult/sexually explicit.”
• BESS and SurfControl blocked curriculum materials on Populism because they also contained information about National Socialism. Symantec blocked the National Rifle Association and other pro-gun sites while allowing sites associated with gun control organizations.
• BESS blocked a site on fly fishing, a guide to allergies, and a site opposing the death penalty as “pornography.” It also blocked all Google and AltaVista image searches under its category of “pornography.”