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CAB -- ACR
Canadian Association of Broadcasters
http://www.cab-acr.ca/
Digital Television Group Home Page
The Digital TV Group Promotes digital television in all its forms (terrestrial, satellite and cable) - based in the UK with a world view.
http://www.dtg.org.uk/
ETSI
European Telecommunications Standards Institute.
http://www.etsi.org/
FCC
United States Federal Communications Commission, the government regulatory body for television broadcasting.
http://www.fcc.gov/
IABM
International Association of Broadcast Manufacturers
http://www.theiabm.org/
SPIE--The International Society for Optical Engineering
SPIE is dedicated to advancing the scientific research and engineering applications of optics, photonics, imaging, and optoelectronics through meetings, education programs, and publications.
http://www.spie.org/