If you are interested in what the federal government is doing with virtual worlds, this is the group for you. Although virtual worlds equals Second Life to many people, different agencies are exploring a variety of virtual worlds including Active Worlds, Forterra, Nexus EM, etc..
Examples of the federal agencies that are in virtual worlds include Naval Underseas Warfare Center, Information Resource Management College and NOAA in Second Life. The State Department held an educational event in Second LIfe. CRS issued a PDF on government agencies in Virtual Worlds in April 2008.
The Federal Consortium of Virtual Worlds has been around since 2007 and has held two conferences in Nov 2007 and April 2008. The next 2 day workshop is scheduled for 23-24 April at the National Defense University in Washington, DC. Check out the information about FCVW at http://www.ndu.edu/irmc/fedconsortium.html.
One of the real benefits of joining the FCVW (which is free to join) is access to the consortium wiki. You can sign up at for access to the Consortium Wiki.
There is a Library Working Group within the FCVW co-chaired by Laura Bartlett Bartlett at the National Library of Medicine. firstname.lastname@example.org and Pat Alderman at the National Defense University. email@example.com