Bid Street USA
Offers online resources for bidding projects or finding projects to bid to contractors, suppliers, engineers, architects, and public entities.
http://www.bidstreetusa.com/

Construction Summary
Information source for commercial construction in New Hampshire, Vermont and Maine. Provides an online planroom, classifieds, and daily construction reports.
http://www.constructionsummary.com/

BB-Bid
Bid solicitation and management system that enables companies to build, customize, and maintain their invitation to bid lists in an online format.
http://bbbid.thebluebook.com/

Constructionbidding.com
Internet marketplace for viewing, downloading, and printing password-protected plans and specifications of construction projects nationwide.
http://www.constructionbidding.com/

iSqFt
Preconstruction management services, including internet plan rooms for businesses of the construction industry. Features plan downloading, viewing, and purchasing.
http://www.isqft.com/

McGraw Hill Construction
Provides architects, suppliers, and contractors an online resource center for upcoming projects and projects that are out to bid.
http://network.construction.com/

Nationwide Construction Leads
Construction leads and bidding opportunities provided through a web based platform, focusing on projects within the industrial and commercial construction sector including federal and state project leads.
http://www.ncleads.com

RenovationExperts.com
Brings homeowners and pre-screened home improvement contractors together to provide homeowners with free home improvement estimates.
http://www.renovationexperts.com/

ServiceMagic
Matches home owners to home improvement contractors and real estate agents to assist in residential repairs and construction.
http://www.servicemagic.com/

TranspoLink
Serves the transportation industry by providing contractors procurement opportunities issued by the government.
http://www.transpolink.com/

Federal Business Opportunities
Official federal government procurement opportunities allowing contractors to retrieve services posted by government buyers.
http://www.fedbizopps.gov/

ConstructionWire
Provides details of active projects starting in the preconstruction stages to contractors of the commercial industry.
http://www.constructionwire.com/

BXNet
Network of Builders Exchanges and other associations that provide members with bidding reports, plan rooms, statistical research, and assistance in locating qualified contractors.
http://www.bxnetwork.org/

Universal Information Services, Inc.
Construction leads, project information, bid notices, and bond issues delivered to contractors via fax, e-mail, or US Postal Service.
http://www.universal-info.com/html/services6.shtml