The State and Revolution
- The Marxist theory of the state and the tasks of the proletariat in the revolution by Lenin.
- http://www.marxists.org/archive/lenin/works/1917/staterev/

What is to be Done?
- In which Lenin outlines the concept of the vanguard revolutionary party run according to the principles of democratic centralism.
- http://www.marxists.org/archive/lenin/works/1901/witbd/

Manifesto of the Communist Party
- Online text from Literature Project.
- http://www.literatureproject.com/comm-manifesto/index.htm

The Communist Manifesto
- The text that serves as the beginning of the communist movement
- http://www.anu.edu.au/polsci/marx/classics/manifesto.html

CapitAllism
- Calls for a cap on personal incomes as a solution to inequity.
- http://www.capitallism.org

Economic Socialism
- A text by Henry Sidgwick which examines socialist economics, originally published in 1886 in The Contemporary Review.
- http://phare.univ-paris1.fr/textes/Sidgwick/Social.html

Marxist.net
- Marxist discussion and analytical resource material to guide the building of the revolutionary party and the socialist revolution. From the Committee for a Workers' International (CWI)
- http://www.marxist.net

Marxists Internet Archive
- The most complete database of Marxism hitherto made. The archive is divided into three major sections: Marxist writers, Marxist history, and reference materials. Marxist writers has information on Marxists from Karl Marx and Frederick Engels to Che Guevar
- http://www.marxists.org

"Why Socialism?" by Albert Einstein
- An indictment of capitalism by Time magazine's Man of the Century.
- http://www.hartford-hwp.com/archives/26/001.html

What is Dhammic Socialism?
- Socialism examined from a Buddhist perspective.
- http://www.suanmokkh.org/ds/what_ds1.htm

Socialism Web
- An explanation and defence of socialism from an independent socialist.
- http://home.vicnet.net.au/~dmcm

Prout World
- Site concerning the Progressive Utilization Theory, "Prout" a "neo-humanist" system addressing the socio-economics of liberation. This seems to be a utopian socialist theory based on eastern religious principles.
- http://www.proutworld.org/

Guild Socialism Reconsidered
- An essay by Roger McCain examining the guild socialism of the pre-industrial era.
- http://william-king.www.drexel.edu/top/personal/wkpaps/gildf/gildpref.html

archive: the left side of the brain is bigger
- A constantly growing collection of writings by left-wing thinkers: Sartre, Einstein, Orwell, Gandhi, Naomi Klein, Pinter, Picasso, Marx, Gore Vidal, Oscar Wilde, GB Shaw, Beauvoir, Martin Luther King, Alice Walker and others.
- http://archive.8m.net/

Working Class Movement Library
- A collection of materials concerned with the activities, expression and enquiries of the labor movement, its allies and its enemies, since the late eighteenth century.
- http://www.wcml.org.uk/

Fundamental Principles of Communist Production and Distribution
- Treatise from the Independent Group of Communists in Holland, 1930.
- http://reality.gn.apc.org/econ/gik1.htm

British Labour Party Election Manifesto, 1945
- "Let Us Face the Future: A Declaration of Labour Policy for the Consideration of the Nation." Full text of the manifesto on which Labour was elected in 1945, under which they instituted the welfare state in Britain.
- http://www.labour-party.org.uk/manifestos/1945/1945-labour-manifesto.shtml

International Socialist Group - Discussion Document
- A 1994 document from the shortlived ISG which was formed by individuals expelled from the (British) Socialist Workers Party. Document crtiques the SWP's internal regime and its politics.
- http://www.etext.org/Politics/International.Socialists-UK/isg.txt

The SWP vs. Lenin: Bureaucratic Centralism or Democratic Centralism?
- Document produced by a dissident group expelled from Socialist Workers Party in Britain in 1994 criticizing the SWP's internal regime. The SWP leads the International Socialist tendency and is best known for publishing the newspaper Socialist Worker.
- http://www.etext.org/Politics/International.Socialists-UK/swp.txt

Regina Manifesto
- 1933 founding document of Canada's Co-operative Commonwealth Federation (now the NDP).
- http://www.arts.uwaterloo.ca/ECON/needhdata/Regina_Manifesto.html

The Genesis of Trotskyism
- Written in 1933, this pamphlet by Max Schachtman explains the development of Trotskyism and the International Left Opposition from the point of view of a leader of the American movement.
- http://www.marxists.org/archive/shachtma/works/shacht01.htm

The Fight For Socialism
- Programme of the Workers' Party (1946). The WP was a "Third Camp" split from the Socialist Workers Party. It was led by Max Shachtman.
- http://www.marxists.org/archive/shachtma/works/ffsind.htm

Towards a New Socialism
- Polemic against market socialism by W. Paul Cockshott and Allin Cottrell.
- http://www.ecn.wfu.edu/~cottrell/socialism_book/

Global Document Index
- A series of documents from various Trotskyist groups and tendencies.
- http://www.marxists.org/history/etol/document/index.htm

Abram Leon: The Jewish Question - A Marxist Interpretation (1946)
- An influential work by the Belgian-Jewish Trotskyist published in 1946.
- http://www.marxists.de/religion/leon/index.htm

The Port Huron Statement
- Written in 1962 and adopted by Students for a Democratic Society, the Port Huron Statement is considered to be a seminal document of the New Left.
- http://coursesa.matrix.msu.edu/~hst306/documents/huron.html

The Gotha Program (1871)
- Excerpts from the founding manifesto of the German Social Democratic Party
- http://history.hanover.edu/texts/gotha.html

The Transitional Program for Socialist Revolution
- Formal title is "the Death Agony of Capitalism and the Tasks of the Fourth International," written by Leon Trotsky this was the founding programme for the Fourth International and remains a guiding document for Trotskyists.
- http://marxists.org/archive/trotsky/works/1938-tp/index.htm

Evolutionary Socialism
- Excerpts from Eduard Bernstein's revisions of Marxism which established modern social democracy.
- http://www.fordham.edu/halsall/mod/bernstein-revsoc.html

Erfurt Program, 1891
- Radical program adopted by the German Social Democratic Party in 1891 which signified the party's adoption of Marxism.
- http://www.fordham.edu/halsall/mod/1891erfurt.html