There was a great article in the Chronicle of Higher Education the other day called A Laboratory of Collaboration (subscription probably required). Thomas H. Benton (aka William Pannapacker) is a professor with a deep love of libraries. In his article he discusses the changing role of libraries as well as the increasing gap between librarians and faculty, the reasons for the gap, and some ideas for collaboration.
Well worth a read. I also hope many professors stumble upon it. It was actually sent to us librarians by a professor, which is always nice.