Provides information on sustainable architecture and natural building including the use of natural materials, renewable energy, water and forest conservation, and links to other sites with eco-friendly products. - (Read more)

Provides an overview of resource efficient buildings and multiple low cost and free tips for energy efficiency. From Building Environmental Science and Technology. - (Read more)

Provides information for designers and builders on environmental design, eco-construction products, environmental organizations, and other green building resources. - (Read more)