Incidentally, when I was looking for a link for the Wallingford library, I found this new source of US public library demographic data: librarybug.org. The entry for our library is a little out of date, but mostly correct, and they even have our micro-library that I use here in town. Oddly, doing a whois search for the domain turns up nothing. It's registered to some company that prefers to remain anonymous, but also owns collegebug.org