Education 18 Artificial intelligence 13 Media studies 12 Information retrieval 10 Sociology 10 Urban & municipal planning 10 User interface design & usability 10 Computer networking & communications 9 Computer science 9 Environmental science, engineering & technology 9 Expert systems / knowledge-based systems 9 Information technology: general issues 9 Electrical engineering 8 Engineering: general 8 History of art / art & design styles 8 Politics & government 8 Software Engineering 8 Architecture 7 Business & management 7 Central government policies 7 Civil engineering, surveying & building 7 Industrial applications of scientific research & technological innovation 7 Landscape art & architecture 7 Political science & theory 7 Political structure & processes 7 Production engineering 7 Public administration 7 Social issues & processes 7 Society & social sciences 7 Systems analysis & design 7