Like many institutions, MIT is thinking about how to involve the MIT community in its space in Second Life. The Projects is a collaborative building system in Second Life, consisting of configurable pods owned by MIT community members that connect together into a high-level structure. The design of these pods and their interconnection has a number of important challenges unique to working in a three-dimensional, virtual environment like Second Life: presence, history, search, and navigation. Based on sensors embedded in the pods and rules about how pods can be connected, we can provide socially based services that will form the backbone of this virtual architecture.