Librarian Definition
I had never discovered the Unencyclopedia wiki. It is a "content-free encyclopedia that anyone can edit." And look out! They have an entry for Librarian.
Note: do not click the link above if you do not have a sense of humor. This entry pokes fun at librarians, but at the same time displays a real understanding of what librarians do. I'd bet it is written by one of us.
I particularly enjoy the part on How to Vanquish a Librarian.
TIP! Vanquishing Librarians is most effective in non-book environments.
Repeat the following incantation three times "Your field is obsolete
and you will be replaced with improved content and slicker GUI
interfacia from Google." This should be sufficient to destroy the
non-technical librarian.
A geekier librarian may be resistant to this incantation and should
simply be bludgeoned with the first volume of the OED or a similarly
large reference book.