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Albert and Vera Weisbord Archives
Archives of the writings of the communist radicals of the 1920s and 30s.
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Arguments for a Workers’ Republic
The history of the far left, particularly Trotskyism, in Ireland.
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League for the Revolutionary Party
Dedicated to the restoration of authentic Marxism and the political independence of the working class everywhere. Contains news, publications, and assorted writings.
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Marx Memorial Library
Books, pamphlets and periodicals on all aspects of Marxism, the science of Socialism and history of working-class movements.
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Marxist Student Federation
Aims to build an organisation of students educated in the ideas of Marxism.
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Marxist.net
Marxist resource from the Committee for a Workers' International.
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Marxists Internet Archive
Comprehensive guide to Marxism including Marxist writers, history, subjects, reference, and encyclopedia.
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Prometheus Research Library
Working research facility for a wide range of Marxist studies and also the central reference archive of the Spartacist League of the U.S.