The central labor body for over 300 Chicago area unions affiliated with the AFL-CIO (American Federation of Labor - Congress of Industrial Organizations. The membership of these unions exceeds 500,000. Site includes local labor news, links, and real audio.

SEIU led campaign fighting to organise low-paid workers, particularly in the janitorial sector.

International Union of Operating Engineers in Chicago. Features reports, 401k information, events calendar and support services.

Features news, events, training, links, and officials. Local union of the United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada.