Instant messaging is becoming an increasingly popular way to communicate. In fact, in some environments and among some populations, it is surpassing email in popularity. What does this mean for libraries? During this presentation we will look at instant messaging trends in order to understand who uses IM, and for what purposes. We will also look at some of the ways libraries are implementing IM, and for those who are new to this communication technology we will cover the basics of setting up and using an IM account.