For an up to date listing of commercial and residential building codes in your state, see:
www.bcap-energy.org/map_page.php

The Whole Building Design Guide - created to help building designers understand and integrate new technologies into energy efficient building enclosures:
www.wbdg.org

The Air Barrier Association of America - the national voice of the air barrier industry in America:
www.airbarrier.org

A collaborative effort of the National Institute of Building Sciences (NIBS) and the American Institute of Architects (AIA), Building Enclosure councils are forming in major cities throughout the United States. This interdisciplinary forum of architects, engineers, consultants, manufacturers, contractors, developers, owners, facility managers, etc. promotes the pursuit of excellence in the design, construction and performance of building enclosures:
www.bec-national.org