• 47 Videos, Slides, Films

• 1 DVDs

• 30 Technology
• 22 Mathematics
• 22 Vocational guidance
• 17 Social aspects
• 15 Social change
• 15 Technological aspects
• 12 Engineering
• 12 Study and teaching
• 9 Cyberspace
• 9 Information society
• 8 Engineering mathematics
• 7 Research
• 6 Biology
• 5 Applied mathematics
• 5 Criminal investigation
• 5 Criminal procedure
• 5 Forensic sciences
• 5 Physics
• 5 Public safety
• 5 Technological innovations
• 4 Chemistry
• 4 History
• 4 Methodology
• 4 Physical geography

• 46 Films Media Group
• 5 Indigo films
• 4 BBC Worldwide Ltd
• 4 Cambridge Educational (Firm)
• 4 Video Education Australasia
• 3 ABC News Productions
• 3 Media4Math
• 2 Journeyman Pictures (Firm)
• 2 Media 4 Math (Firm)
• 2 Uniview Worldwide
• 1 APT Worldwide
• 1 Ampersand Film & Video Tape Productions
• 1 Benedict, Jay
• 1 British Broadcasting Corporation
• 1 Canadian Broadcasting Corporation
• 1 Cook, Nicola
• 1 DOC & Co
• 1 Gliner, Robert
• 1 Intelligence² (U.S.)
• 1 Joy of Giving Something, Inc
• 1 NPO/Netherlands Public Broadcast
• 1 Nobel Media AB (Firm)
• 1 Online Classroom Ltd
• 1 P.J. Productions, Llc

• 47 English

• 2 Europe
• 2 United States
• 1 China

• 46 Internet videos
• 45 Educational films
• 45 Videorecording
• 1 Documentary television programs
• 1 Nonfiction television programs
• 1 Science television programs
• 1 Specifications

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