International Aluminum Companies
  International Aluminum
  International Window

Industry Links
  Construction Specifications Institute
  American Institute of Architects
  Adams Rite Manufacturing Co.
  Hagar Companies
  Special Projects Group, Inc.
  Yale Security Products, Ltd. 
  PPG Industries
  Building Online: a text based building industry search engine
  AEC Daily
  Florida Department of Community Affairs
  Arcat.com: building product information

Publications
  Architectural Record 
  Architecture 
  Key Communications, publishers of U.S. Glass Magazine 
  National Glass Association, publishers of Glass Magazine