SIP Web Sites
http://www.pathnet.org/ - web site sponsored by HUD exploring innovative building technologies, including SIPs. Includes information on installation, benefits/costs, limitations, code/regulatory, and more.
http://www.epsmolders.org/ - dedicated to promoting and increasing the use of expanded polystyrene building and construction products
http://www.oikos.com/ - web site dedicated to energy efficient construction and environmentally responsible building techniques