I saw this posting on the IT Consultant section of TechRepublic, and thought the resources it linked to fit libraries and their services. I figure I am an information consultant for my clients, and my job is to serve existing clients, and to acquire new ones. If this fits your idea of what other roles a librarian has, you might find the following useful.
Self-training for IT Consultants: Management and Marketing Resources
http://blogs.techrepublic.com.com/project-management/?p=1609&tag=nl.e101
Some of the book titles that the article links to:
Managing the Professional Service Firm

How to Establish a Unique Brand in the Consulting Profession

Get Clients Now!

How to Acquire Clients

Pew Internet & American Life Project has released this report:
The Impact of the Internet on Institutions of the Future
http://pewinternet.org/Reports/2010/Impact-of-the-Internet-on-Institutions-in-the-Future.aspx.
This will give you much to discuss at your next library planning meeting, no doubt.

Google is now Topeka! Thought you would enjoy this post I found today:
http://googleblog.blogspot.com/2010/04/different-kind-of-company-name.html. Here's to your day being filled with fun and no fools.