Some websites of possible interest:
Black Cultural Archives
Bookmarks Bookshop
British Library
CLR James Legacy Project
Duke University Press
Every Cook Can Govern: CLR James Portal
Ford Maguire Society
Fragments and Correspondence
George Padmore Institute
Hatful of History
Heritage Corner
Histomat
Historian on the Edge
History after Hobsbawm
History Workshop
Ian Birchall
Ipswich Town Football Club
Institute of Black Atlantic Research at UCLAN
Institute of Historical Research
Institute of Race Relations
International Socialism
London Socialist Historians Group
Marcus Rediker
British National Archives
Nic Watts – Illustrator
Oilfield Workers’ Trade Union
People’s History Museum
Pluto Press
Public History Group
Redwords
Remember Oluwale
Resolute Reader
Save Nello James
Sean Creighton
SF Forward
Small Axe
Socialist History Society
Society for Caribbean Studies
Society for the Study of Labour History
Stand Up To Racism
Stand Up to UKIP
Stephen Bourne
Stop the War Coalition
Stuart Hall Memorial
Tayo Aluko
The Public Archive – black history in dark times
Trinidad and Tobago Association UK
Unite Against Fascism
Working Class Movement Library