British SWP -- "State Capitalist" group led by Chris Harman, Alex Callinicos and John Rees. Has grown rapidly in recent years.
Broad Left: directory of leftist parties
ComInterNet -- Listing of Communist Parties worldwide
Committees of Correspondence -- Nonsectarian group launched by Communists who broke with Gus Hall when he backed coup against Gorbachev. Politically close to the South African Communist Party.
In Defense Of Marxism -- British "orthodox" Trotskyists with interesting if catastrophist-leaning viewpoint.
Independent Progressive Politics Network, works for 3rd party in the USA.
International Viewpoint: journal of the Mandelista wing of the 4th International
DSP -- Web page of the Australian Democratic Socialist Party, a post-Trotskyist group very involved with ecology.
Revolution in the Air: Max Elbaum book on the New Communist Movement
Lefthook: nonsectarian revolutionary youth journal
The Militant -- Newspaper of the ex-Trotskyist American SWP. Believes that revolution is around the corner.
New Politics Initiative, works for new left party in Canada.
New Socialist Group: Canadian non-sectarian formation led by David McNally; similar to Solidarity in the U.S.A
Ozleft: documents dealing with the Australian left
Politik und Kultur: includes history of the German left (in English as well)
Quebec's Union of Progressive Forces: a new party of the left
Rebuilding the Left: a conference for the Canadian radical movement
To Change the World: discussion of RCP Draft Programme (Maoist group based in the USA)
Scottish Socialist Party: new non-sectarian revolutionary party; MP Tommy Sheridan is leader
Socialist Solidarity: British website promoting the model of the Scottish Socialist Party.
Socialist Alliance: electoral party combining far-left groups.
Australian Socialist Alliance (modeled on British and Scottish formations).
Solidarity -- Non-sectarian American formation with excellent magazine "Against the Current"