- Socialist Labor Party - The original political party of socialism in the United States, established on a Marxist basis in 1890. This site includes facts about the SLP's history, its revolutionary principles and program, a definition of socialism, an SLP local directory and a short biography of Daniel De Leon.
www.slp.org
- The New Union Party - Seeks to bring the entire economy under the ownership and control of all the people. Marxist-DeLeonist.
www1.minn.net/~nup
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