Peter Rachleff's 1976 introduction to and history of council communism.
Richard Gombin's 1978 introduction to the history and theory of council communism.
Neil Fettes' introduction to the idea of council communism, written in 1999.
Marcel van der Linden writes on council communism. In PDF format.
Carl Boggs writes on the movement for workers' councils, looking at the examples of the failures of the Russian and German revolutions, and the Italian Biennio Rosso.