By John Kleefeld [social-bio] In my previous post, I characterized the subject categories in the Requested articles page as idiosyncratic and mused that they might be better based on the Library of Congress Classification system. As it happens, Wikipedia does map some of its articles (pages) into the LCC system, and also provides several other methods of organizing knowledge. Some of these are well known, some less so. I want to discuss them because I think that instructors and students alike should be familiar with ways of finding knowledge beyond today’s default method of keyword searching. First, though, I want to talk about two approaches to knowing or learning, which…