All Web filtering software mistakenly blocks access to medical information, according to a study in the Dec. 11 issue of The Journal of the American Medical Association. Some experts say that parents should be advised not to use the Web filters, but to obtain reliable information about how to use the Internet so that their children will be protected.
Although Web filters all have several settings, at their least restrictive settings, they block 87% of pornography and 1.4% of general health information in typical health-related searches. Also, at this least restrictive setting they block 10% of health sites with information about sexually transmitted diseases, safe sex, condom use, and homosexuality. At the more-often-used, more restrictive settings, the filters block only slightly more pornography but they block up to 17 times more health information.
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