Data Aire Links – Directories

The Blue Book
The Blue Book of Building and Construction is a source of regional, categorized construction information.
A nexxus in the worldwide design and construction industry. Focus on Architecture, Engineering and Construction Worldwide, with cross-referenced listings in (753) product and service categories in (84) countries.

First Source
The internet channel for architects, engineers, specifiers and contractors.

Digital marketplace for the government contracting industry.

Internet HVAC/R Directory, Index, & Resource for the residential, commercial, industrial, and mobile Heating, Ventilating, Air Conditioning, and Refrigeration market.
Industry resource for Contractors, Wholesalers, and Manufacturers.