A World to Win
- Campaigning for a society based on co-operation and mutuality, self-management and democratic ownership, and opposing global capitalism.
- http://www.aworldtowin.net/

Campaign for a new workers' party
- A campaign for the establishment of a new mass workers' party in England and Wales.
- http://www.cnwp.org.uk/

New Communist Party of Britain
- An orthodox, anti-Eurocommunist group that split from the Communist Party of Great Britain in the 1970s. Site includes an online version of the newspaper New Worker.
- http://www.newworker.org/

Democratic Socialist Alliance
- Introduction, discussion bulletins, programme and founding statement.
- http://www.sademocracy.org.uk/

Socialist Party of Great Britain
- Party made up of people who have joined together because they want to get rid of the profit system and establish real socialism.
- http://www.worldsocialism.org/spgb/

Socialist Solidarity Network
- Made up of socialists from various backgrounds, advocates socialist renewal and regroupment on a non-sectarian basis. Publishes "Socialist Resistance" with the International Socialist Group.
- http://www.socialistsolidarity.com/

Workers Power
- British section of the League for a Revolutionary Communist International. Site includes information about Marxist theory, an online version of the Workers Power bulletin.
- http://www.workerspower.com/

Socialist Unity Network
- Group formerly within the Socialist Alliance and Respect arguing for a new socialist party. Part of the Socialist Green Unity Coalition.
- http://www.socialistunitynetwork.co.uk

Alliance for Green Socialism
- Formerly the Left Alliance. Based in Leeds and is made up of former supporters of the Labour Party who are dis-enchanted with Blairism. Supports the Socialist Green Unity Coalition.
- http://www.greensocialist.org.uk

Communist Party of Great Britain
- A rump of the old CPGB and smaller than the other groups that split from the original party in the 1970s and 80s. Participated in the Socialist Alliance advocating that it become a political party. Site includes an online edition of the Weekly Worker.
- http://www.cpgb.org.uk/

Alliance for Workers' Liberty
- This group, formerly known as Socialist Organiser is active in the British labour movement and the Labour Party. The group is also moving towards an ideological position of "critical Marxism." Participated in the Socialist Alliance. Now in the S
- http://www.workersliberty.org/

Independent Working Class Association
- Promotes the political and economic interests of the working class; the site includes manifesto, news, party structure, election results and the IWCA’s first councillor's diary.
- http://www.iwca.info/

Socialist Party of Great Britain (Reconstituted)
- Formed in 1991 after its members were expelled from the Socialist Party of Great Britain. Publishes Socialist Studies. Site includes online literature and meeting information. Criticises the original SPGB for being anarchist oriented and reformist.
- http://www.spgb.org.uk

Socialist Party of Great Britain (Socialist Standard)
- Founded in 1904 and affiliated with the World Socialist Movement. Site includes information about party activities and ideology. Marxist but rejects the revolutionary left as well as evolutionary socialism in favour of a belief in spontaneity. Publishes t
- http://www.worldsocialism.org/SPGB/index.html

General election 2001 - left results
- Constituency results by left wing parties and candidates in the 2001 general election. Includes results for the Socialist Alliance, Scottish Socialist Party, The Socialist Party (running as Socialist Alternative), Socialist Labour, Workers Revolutionary P
- http://www.cpgb.org.uk/worker/388/vote2001.html

Workers' Revolutionary Party
- General Secretary is Sheila Torrence. Descended from the tendency led by Gerry Healy who was expelled in the 1980s. Rival of Socialist Equality Party both of which claim to be the British section of the International Committee of the Fourth International
- http://www.wrp.org.uk/

Socialist Labour Party
- Official website including party news, policies and contact details.
- http://www.socialist-labour-party.org.uk/

Revolutionary Communist Group (Britain)
- Orients towards youth and emphasises issues such as anti-racism and anti-imperialism. Site includes Larkin Publications.
- http://easyweb.easynet.co.uk/~rcgfrfi/index.html

National Committee for the Marxist-Leninist Party
- Stalinist formation, argues for the unity of Marxist-Leninists and the foundation of a single Communist Party in Britain.
- http://www.oneparty.co.uk

Socialist Equality Party
- Rival of Workers' Revolutionary Party from which it split in the 1980s. Both claim to be the British section of the International Committee of the Fourth International (itself a result of a split in Trotsky's Fourth International).
- http://www.socialequality.org.uk/

Independent Labour Network
- Formed in 1998 by Ken Coates and Hugh Kerr, then MEPs, following their expulsion from the Labour Party. Criticises New Labour and advocates return to socialist principles.
- http://www.iln.labournet.org.uk/

Red Action
- News and articles from Red Action's eponymous bi-monthly bulletin. The group is Marxist but anti-Leninist. Has withdrawn its support of the Socialist Alliance.
- http://www.redaction.org/