The Seattle Public Library has a regular feature on the website of a local paper, the Seattle Post-Intelligencer. It's titled Shelf Talk, and in addition to general library content, it also features interesting reference questions (and their answers).
I think it's a great idea for libraries to have regular columns in the paper, in addition to events listings. It's not only entertaining and informative, but also promotes the library's reference service, subtly reminding people they can get help with tough questions at the library. And not surprisingly, Seattle is doing an excellent job of it.