* At the library system I worked at, it was a matter of staff judgement.
When I said .1 cents I actually meant a small amount but not a trivial amount per paycheck multiplied by the tax paying population. So around 7 million per year. Not sure if that's significant enough, but it was just a figure off the top of my head meant to demonstrate that by paying a small amount individually we could help the issue.
Anyways, I've over-explained it now... but I felt like a douche when I checked my threads this morning.
Mainly, I just wanted to point out that it's a quintessential "Small Matter of Programming" (http://en.wikipedia.org/wiki/Small_matter_of_programming) issue in library policy, and people who have never worked for a library can easily underestimate the difficulty. My response was a bit over-bristly, though, sorry.
Didn't mean to say it was easy, jus worthwhile.
I don't care if there's a nude painting on display, but I do care if there's some hard core humping on a computer monito in a public place where my child can see it... I mean he was just born, give him at least a few years innocence!