Three scholars are interviewed about the Library in Alexandria. According to them, literary criticism, textual criticism, and the organization of knowledge into different topics were just some of the things which came out of the Library. Like most scholars, it sounded like there was more than a little conjecture included. Worth a listen nevertheless. (The website also includes some external links on the subject.)
Audio available on BBC's iPlayer until Thursday, March 19th, 9:47am GMT.