In the latest version of The Electronic Journal of Academic and Special Librarianship, v.9, no. 1 (Spring 2008) is an interesting paper by Maura Seale titled "Old Maids, Policeman, and Social Rejects: Mass Media Representations and Public Perceptions of Librarians." Some serious analysis went into this research paper, which discusses the "five categories" of represented librarians (the old maid librarian, the policeman librarian, the librarian as parody, the inept librarian, and the hero/ine librarian). After reading it through, I have to say Ms. Seale is spot on; although almost of her references are older ones (late 90s-early 00s) I can find examples of each and every one of those categories in a media bit presented within the last year. I also have a few new articles to go check out, thanks to her reference list!
It's worth a read - check it out! (Originally via popculture-l; thanks to all the folks who also sent it along to me.)