Introduction

We don't need a supercomputer to calculate that libraries and reference services are undergoing seismic uphea val as information access changes. Susan Bjorner (1996) wrote,

For years we've been struggling to push the walls of the library down and open it up to more use ... aided by technology we're succeeding .... Users are willing and anxious to become our collaborators-or competitors-in the information arena .... we have important and unique skills to bring to the playing field .... We just need to apply them in a different, faster-paced, more populated environment. ...