MPEG:
The official webpage of the Moving Picture Expert Group, a working group of ISO/IEC in charge of the development of standards for coded representation of digital audio and video.
http://www.chiariglione.org/mpeg

ETSI:
The European Telecommunications Standards Institute is an independent, non-profit organization, whose mission is to produce telecommunications standards for today and for the future.
http://etsi.org

3GPP:
The 3rd Generation Partnership Project (3GPP) is a collaboration agreement that was established in December 1998. The collaboration agreement brings together a number of telecommunications standards bodies which are known as "Organizational Partners". The current Organizational Partners are ARIB, CCSA, ETSI, ATIS, TTA, and TTC
http://www.3gpp.org

OMA:
The mission of the Open Mobile Alliance is to facilitate global user adoption of mobile data services by specifying market driven mobile service enablers that ensure service interoperability across devices, geographies, service

providers, operators, and networks, while allowing businesses to compete through innovation and differentiation.
http://openmobilealliance.org

DVB:
The Digital Video Broadcasting Project (DVB) is an industry-led consortium of over 260 broadcasters, manufacturers, network operators, software developers, regulatory bodies and others in over 35 countries committed to designing global standards for the global delivery of digital television and data services.
http://.www.dvb.org

FLOFORUM
FLO technology is poised to significantly change the way multimedia is delivered to mobile devices. Forum members are network operators, device and equipment manufacturers, and content providers - all sharing the common objective of developing FLO-based networks, products and services capable of delivering advanced mobile multicast multimedia services.
http://.www.floforum.org