| 1886, May 4: The Haymarket Tragedy: A description of the events of that day, what precipitated them, and their aftermath. From the Chicago Public Library, with links to photos and other resources. |
| Address of August Spies: Statement in court prior to being sentenced to hang for his role in the alleged Haymarket Conspiracy. |
| Famous American Trials: The Haymarket Affair: Details accounts of the trial, excerpts, biographies of participants, speeches, map of riot area and monuments. |
| Haymarket Monument: The massacre, the martyrs and the monument. |
| The Dramas of Haymarket: Provides multimedia presentation of the Haymarket Affair, events leading up to the riot, and aftereffects. Presented by Northwestern University and the Chicago Historical Society. |
| The Haymarket Martyrs: The story of the Haymarket Martyrs, and their monument in Forest Home Cemetery. |
| The Haymarket Massacre Archive: A mix of links, historic documents, and original essays on the events and the people involved. Includes image gallery and bibliography. |
| The Haymarket Tragedy: Articles about the 1886 workers' strike that ended in deaths and subsequent bombing and rioting. |