The American Institute of Architects, H. Edward Goldberg
Solibri: I have mentioned this product in Cadalyst previously, but because it is so important for BIM, I will mention it again: Think of Solibri Model Checker as a spell checker for virtual models. The program analyzes building models for integrity, quality and physical security. It checks for potential flaws and weaknesses in the design, highlights clashing components and determines whether the model complies with building codes and an organization's own best practices. You can set up rules to check just about anything in your BIM model. (It found overlapping walls in my Revit model plus checked for fire egress paths.) For anyone working with the GSA, this program is a must, as the GSA has purchased it.