"Construction Criteria Base (CCB) is an extensive electronic library of construction guide specifications, manuals, standards and many other essential criteria documents. Published and updated continuously.
This is a veritable hodgepodge listing of construction resources which includes topics such as organizations, industry topics, resources, news guides, construction calendars, bulletin boards, and projects.
The McGraw-Hill Construction website indicates that they "connects people, projects, and products across the design and construction industry." It provides industry news, market research and intelligence, a section to search for bidding projects, business opportunities and more.