"Law Librarians in Virtual Worlds"

Montserrat Biedermann, Second Life

Foreign, Comparative, and International Law (FCIL)
on Second Life: International Virtual Law Worlds

Generally

Galileo Law Directory (via LawSpot Online: Virtual Worlds Law Library)
http://www.lawspotonline.com/lawspot/directory.jsp

Diplomacy Island
http://slurl.com/secondlife/Diplomacy%20Island/155/187/27

e-Justice Centre do Ministrio da Justia (Portuguese Ministry of
Justice's Dispute Resolution center)
http://slurl.com/secondlife/eJustice%20Centre/42/142/27/
http://www.ejusticecenter.mj.pt/

Field Fisher Waterhouse LLP
http://slurl.com/secondlife/depo%20business%20hub/215/185/35/
(description from Galileo Law Directory - "European Law Firm, with a
strong technology, media and IP focus.. An early adopter of SL.")

The Justice Commons (International Justice Center)
http://slurl.com/secondlife/The%20Justice%20Commons/81/192/28
http://www.justicecenter.net/

Note these two off-world (Real Life/First Life) resources:

Jumpstart Your Foreign, Comparative, and International Research: Use People Resources

Where the Fierce Things Are: People Resources for International Law Research