Protest in Harmony - Edinburgh-based radical choir; information about meetings, campaigns, membership, events and news. [Scotland, UK] - http://www.protestinharmony.org.uk/
Workers' Music Association - An association of organisations, choirs, and individuals promoting music to further the aims of peace, internationalism and social justice. Details of membership and their summer school. [UK] - http://www.users.zetnet.co.uk/baritone/
Notre Dame des Bananes Choir - Ensemble in Edmonton that sings songs of peace, freedom and equality. Information on membership and upcoming performances. - http://www.notredamedesbananes.ca/
Victorian Trade Union Choir - Formed in 1990 as part of a revival of trade union choirs in Australia. Information about membership, recordings, gigs, and booking contacts. [Melbourne, Australia] - http://home.vicnet.net.au/~vtuc/
Raise Your Banners - Biennial celebration of political music and song held at Sheffield Hallam University. Includes schedule of events and news. - http://www.ryb.org.uk/
The Brooklyn Women's Chorus - Community choir with a repertoire ranging from South African freedom songs to contemporary songwriters on freedom and justice, peace, resistance, and women's labor history. Includes events listing, details of recordings, and news. [New York, US] - http://www.brooklynwomenschorus.com/
New York City Labor Chorus - Promotes union solidarity by singing the history and ongoing struggles of workers for economic and social justice. Details of membership, repertoire, performances, recordings and news. - http://www.nyclc.org/
Seattle Peace Chorus - Promoting peace and justice through the sharing of music and ideas. Concert schedule, history, membership information, and links to relevant resources. - http://www.seattlepeacechorus.org/
Nottingham Clarion Choir - A Labour movement choir, supporting trade unions, socialist, radical and environmental organisations. Includes details of their recordings and performances. [Nottingham, UK] - http://www.nottinghamclarionchoir.org.uk/
Red Notes - A socialist choir which campaigns for peace, justice, freedom and internationalism. Details of their repertoire, events diary, newsletter and merchandise. [Bristol, UK] - http://www.rednoteschoir.org.uk/