- duckduckgo: History of labor relations in the United States
- Holt Library: Labor Links
- Labor Archives and Research Center (LARC)
- The San Francisco Labor Landmarks Guide Book
- Wikipedia: Labor History Timeline
- Industrial Relations in the San Francisco Bay Area, 1900-1918 By R. Knight
- A History of the Labor Movement in California, Vol. 14; By Ira Brown Cross
- Oral Histories: Organized Labor in the Bay Area
- Reds Or Rackets?: The Making of Radical and Conservative Unions on the Waterfront By Howard Kimeldorf
- PU: History of Union Political Activity
- Labor History Link
- Labor in the thirties Bibliography
- The Labor Movement of America
- New Unionism Network
- Labor Video Project
- Wikipedia: Labor Library
- DOL: Hall of Honor
- Reuther Library
- UK: Hayes Library
- Red Scare Image Library
- Upton Sinclair’s EPIC Comics
- US Trade Union Activists
- AFL-CIO biographies
- Today In Labor History
- Cornell ILR Labor Daily
- Labor Arts
- WashU: Waterfront History Project
- The Big Strike
- Barons of Labor: The San Francisco Building Trades and Union Power By Michael Kazin
- Audio of Historian Michael Kazin on Labor and the 1906 Quake
- A People’s History of the United States by Howard Zinn
- Right To Work Network: National Institute for Labor Relations Research
- UC: Institute for Research and Labor Employment
- IRLE Library
- The Growing Silence of Union Radio
- Union Edge – National labor radio show
- KPFA – Workweek Radio