Eighty percent of Internet users are expected to engage in some form of virtual world activity by 2011 (Gartner Research Group), and librarians and educators are already there. This fascinating book—the brainchild of two pioneering virtual world librarians—is designed to help libraries and schools recognize the importance of multi-user virtual environments (MUVEs) and consider ways of getting involved as they proliferate. The editors and 24 contributors describe library, educational, and cultural projects they have undertaken. They recount their experiences working together to succeed in Second Life and other virtual worlds and explain how traditional library services such as reference, teaching, collections, discussion groups, and young adult programs can be applied in a virtual environment.