There seems to be endless information in the world, and with that, endless opportunities for reference materials, from the classic encyclopedia to the “deep web” (information that cannot be accessed through a search engine, such as that in a database). That information is constantly evolving though, which charges libraries and librarians with the task of ensuring their collections reflect the latest information. This is a major challenge, given that newly published printed reference materials are often already out-of-date by the time they land in the patrons’ hands (Riedling). So how do libraries and librarians stay current in this rapidly changing, information overload era? The first step must be to weed out the outdated and the inaccessible materials. Books containing outdated information must be weeded from the collection, even if that means that all books on a particular topic are removed. Nearly two decades ago, librarian Gail Dickinson created an excellent analogy to ...