There are some really interesting developments going on within the 3D virtual reality world, "Second Life". A group of librarians, (Greg Schwartz, Lori Bell, Kelly Czarnecki, and Jami Lynn Schwarzwalder) have embarked on the virtual development of a library inside this world. The library is called the Second Life Library 2.0. It is free to create an avatar and download the Second Life software. The Librarians who volunteer their time inside this world offer virtual library instruction tutorials. It is well-worth taking a look at.
Listen to an mp3 explaining Second Life Library 2.0.
This mp3 is linked from another site that will be of interest to us - Online Programming for All Libraries (OPAL).