33 Reasons Librarians are Still Extremely Important - DegreeTutor.com. Very well worth reading. I won't list all of the reasons, but they're good ones. From the conclusion:
Society is not ready to abandon the library, and it probably won’t ever be. Libraries can adapt to social and technological changes, but they can’t be replaced. While libraries are distinct from the internet, librarians are the most suited professionals to guide scholars and citizens toward a better understanding of how to find valuable information online.