This is an interesting project, using Second Life to allow people to collaboratively design museum exhibit prototypes. "It separates exhibit design from exhibit construction. By introducing Second Life as a rapid prototyping tool for exhibit design, this experiment makes it possible for individuals from around the world to collaborate on the same exhibit project. Using The Tech Museum in Second Life to showcase these exhibits designs makes it easy for museums to pick and choose what they will build in real life for their visitors. It opens the exhibit creation process up to the world at large." Here is more information and here is the Second Life SLURL.