Richard Urban delivered an entertaining but technology-bug plagued presentation on museums in SecondLife. Richard’s paper was full of good examples of real and user-created museums that have sprung up in SL and again asked the question of whether museums should be dipping their toes in the SL waters. If you are curious then Richard’s presentation is a good introduction and a solid overview of what is possible and how you might do it.
When combined with the Exploratorium’s SL pioneers Rothfarb and Doherty and their workshop there is a good body of museum-centric introductory information out there, along with Nina Simon and Jim Spadaccini’s previous work on SL.