Take a look:
The site instructs our patrons :
Ask a question via a live chat session Monday through Saturday during the Main Library hours of operation. We have user names for AIM, Yahoo! and MSN Messenger. A professional librarian will gladly help you find the information you seek, be it in print or online.
For AIM, our screen name at SJCPL is asksjcpl.
For Yahoo!, our screen name at SJCPL is asksjcpl.
For MSN, our screen name at SJCPL is firstname.lastname@example.org
I am very happy our reference staff has jumped on the IM thing!!!