Author
Infobase,
235
Injoy Productions
100
Wellness Network (Firm)
53
Ivanhoe Broadcast News (Firm)
31
American Academy of Pediatrics
11
BBC (Firm)
7
BBC Worldwide Learning
6
Cerebellum Corporation
6
Capital Media Group, Inc. (Firm)
5
Public Broadcasting Service (U.S.)
3
Australian Broadcasting Corporation
2
Cable News Network
1
LSI Inc (Firm)
1
Learning Zone Xpress (Firm)
1
MacNeil/Lehrer Productions
1
Meridian Education Corporation
1
Mirror/Mirror Productions, Inc. (Firm)
1
NHK ENTERPRISES 21, INC. (Firm)
1
NewsHour Productions
1
PBS (Firm)
1
SpringerLink (Online service)
1
TVF International (Firm)
1
Video Education America
1
Wolfram, Nicole
1