http://www.afci.org
Association of Film Commissioners International.

http://www.bafta.org
BAFTA: website of the British Academy of Film and Television Arts.

http://www.bectu.org.uk
BECTU.

http://www.bksts.com
BKSTS: Home of the British Kinematograph Sound & Television Society.

http://www.dga.org
Directors' Guild of America.

http://www.dggb.co.uk
Directors Guild of Great Britain.

http://www.locations.ukgateway.net
The Guild of Location Managers.

http://www.pact.co.uk
Producers Alliance for Cinema and Television.

http://www.pma.org.uk
The Production Managers' Association.

http://fmu.useful.co.uk/productionguild
Useful information for producers.