The North American Alliance for Fair Employment (NAFFE) is a network of organizations fighting for fairness for workers in contingent jobs. The website is powered by internal search engine and features information about contingent work and workplace rights, reports, research findings, legal information, a newsletter, and related links.

U.C. Berkeley's Institute of Industrial Relations maintains this online collection of full text labor contracts from around the U.S. Browsable by state, occupation, or union name. All contracts viewable in pdf format.

The Tamiment Library and Robert F. Wagner Labor Archives form a unique collection documenting the United States' labor heritage. The collection is easily searchable by internal search engine and provides some useful resources such as finding aids, subject guides, and programs.