1999 introduces the virtual audience ... and Y2K fallout.
Windhorst
C E
CE
Weaver
D M
DM
D002910:Chronology as Topic; D003199:Computer Systems; D003258:Consumer Behavior; D020407:Internet / Q000706:statistics & numerical data* / Q000639:trends; D008389:Marketing of Health Services; D013995:Time; D014481:United States