GreenBuildingAdvisor is the best resource for green building advice and is used by builders, remodelers, architects, and homeowners.

RDH provides building enclosure, facade, and structural engineering consulting services across North America to improve building performance and resilience.

Building Science is an education and research firm for building performance and enclosure consulting.

National Institute of Building Sciences is a non-profit organization that focuses on advancing building performance and sustainability through research, education, and advocacy.

Energy Vanguard is the best resource for HVAC design and building science, used by homeowners and professionals seeking energy efficiency.