Aha. This reminds me of years ago, when I got to seminary and discovered that the net nanny software blocked the het Smallville archive, but not the slash archive. I didn't point this out to anyone, for obvious reasons, but it did cause me to shake my head. (Also, it blocked some hardware and sports stores, if they had any hunting gear--because guns are evil, donchaknow.)

You could get around it with AOL, which was annoying but not too bad.