Get a (Second) Life!
There's been a great deal of talk about the virtual world, Second Life and how it could be used for instruction and for meeting library customers online.
Educause has put together a fact sheet about Second Life - "7 Things You Should Know About Second Life" (PDF) answering your burning questions like:
-What is it?
-Who’s doing it?
-How does it work?
-Why is it significant?
-What are the downsides?
-Where is it going?
-What are the implications for teaching and learning?