Saw this via my meebo login this morning. If you want to test a potential virtual reference service you may want to give meebo a try.
meeblog » Blog Archive » librarian love: "When we initially launched meebo, we crossed our fingers, gave our two little servers some encouraging pats, and sent out those first emails to friends and family. Words of encouragement started trickling in from students, office workers, soldiers, and travelers. One of our most loyal user groups was completely unexpected… librarians.
Turns out that locked-down computers, reference librarians who always want to be in touch with their patrons, and the desire to make libraries fun and friendly have given meebo and meebo me the perfect opportunity to shine...."