International Encyclopedia of CommunicationGreat source for background on theory, media and communication phenomena, research methods, problems, concepts, and geographical areas.
Since 2009, there have been thirteen updates which have revised 400 online entries and added 37 new entries to the encyclopedia.
"With more than 1,300 A-Z entries, divided into 29 editorial areas representing major fields of inquiry, the encyclopedia spans the breadth of communication studies, including coverage of theories, media and communication phenomena, research methods, problems, concepts, and geographical areas.
Editorial areas include communication theory and philosophy, interpersonal communication, journalism, intercultural and inter-group communication, media effects, strategic communication/PR, communication and media law and policy, media systems in the world, and communication and technology."