Centre for Reformation and Renaissance Studies - Library and research centre devoted to the study of the period from approximately 1350 to 1700. The Centre also organizes a programme of lectures and seminars, and maintains an active series of publications.
Libraries Today - Site for those interested in the history of Canadian public libraries and librarians.
Carnegie Mellon Libraries: Library Arcade - Two surprisingly entertaining flash games for the librarian or library science enthusiast: "Within Range" and "I'll Get It!"
Flickr: The Libraries and Librarians Pool - Find photos and images by and about libraries, librarians, and library life on Flickr. See a slideshow of all photos in the pool, or sort by tags or posters. Updated regularly.
Wikipedia: Libraries - Wikipedia entry discussing library history, the various types of libraries and their uses, and links to the world's famous libraries and archives.