Their About page says, the following:
We are an independent company committed to providing accurate, unbiased, and timely information designed to help building-industry professionals and policy makers improve the environmental performance, and reduce the adverse impacts, of buildings.
We offer both print and electronic resources to help you design and build construction projects from a whole-systems perspective and take an integrated design approach that minimizes ecological impact and maximizes economic performance.
The corporate mission of BuildingGreen, LLC is to facilitate transformation of the North American building industry into a force for local, regional and global environmental protection; for preservation and restoration of the natural environment; and for creation of healthy indoor environments—while promoting the well-being of the company and its employees, owners, and associates.
Check them out at: http://www.buildinggreen.com/?