Accounting	1
Agriculture	7
Animal husbandry	1
Art	7
Banking	1
Business	1
Chemistry	3
Commerce	3
Communications	71
Construction	6
Criminal law	9
Cultural studies	15
Economics	71
Education	51
Electricity generation	1
Electronics	31
Energy industry	33
Environment	58
Finances	78
Fish farming pisciculture	3
Food industry	2
Forestry	2
General	113
Health care	39
Hobbies and pastimes	4
Human rights activism	18
Immigration and citizenship	23
Industry	5
Information technology	267
Insurance	1
International trade	4
Labor law	3
Law	42
Life sciences	5
Marketing	3
Materials science	4
Mechanic engineering	1
Medical	13
Metallurgy	3
Microsoft	41
Mineral products	2
Municipal planning	2
Natural sciences	15
Nuclear physics	5
Obsolete / dated	8
Patents	1
Pharmacy and pharmacology	2
Politics	10
Procedural law	1
Radio	7
Religion	7
Research and development	16
Security systems	1
Social science	37
Sociology	3
Statistics	21
Taxes	12
Technology	7
Telecommunications	5
Telegraphy	1
Textile industry	1
Trade unions	1
Transport	33
United Nations	2
Video recording	5