I don't hear as much curiosity from the research community as I'd like to about what a librarian knows and does, but I do hear some.
For that some, I suggest poking through the fourth annual iteration of Librarian Day in the Life. A wide variety of librarians blog, tweet, photograph, and vid about what their day is like.
Don't just pay attention to the research-related ones, either. The more people who understand in their bones what public librarians, school librarians, and special librarians add to the communities they serve, the better off everyone is, librarian and community alike.
So go on, find out what we do all day! Hint: It ain't reading books. Or shelving them.