Communication Social aspects 149 Mass media 121 Political aspects 58 History 44 Technological innovations 39 Research 30 Methodology 28 Psychological aspects 28 Philosophy 27 Information technology 24 Language and languages 19 Semiotics 15 Study and teaching 15 Communication and culture 14 Economic aspects 14 Information society 14 Communication and technology 13 Communication, International 13 Interpersonal communication 13 Sex differences 13 Communication in politics 12 Communication policy 12 Culture 12 Discourse analysis 12 International cooperation 12 Politics and government 11 Social change 11 Computer networks 10 Data processing 10