Tables and Figures

• Overview of Geographic Demographics
• Overview of IBMPC Usage Demographics
• A model of the elements of media
• Medium as "Black Box"
• An informal typology of media
• Interpersonal versus Mass Media
• Dynamism
• Bandwidth
• Plot of Dynamism with Bandwidth
• Plot of Interpersonal/Mass Media with Dynamism
• Plot of Interpersonal/Mass Media with Bandwidth
• Plot of Media Types Using Intersonal/Mass Media and Bandwidth
• 3D view of User Descriptions of Media
• Phases in append growth on IBMPC
• Phases in contributor growth on IBMPC
• Phases in file growth on IBMPC
• Growth of IBMPC
• Two Dimensions of Value in the 1988 Survey
• Problems reported 1n 1986 and 1988
• 1986 Impacts of Computer Conferencing
• 1988 Impacts of Computer Conferencing
• 1986 Job Distribution
• 1988 Job Distribution
• Mode of innovation and its expected effects
• Single factor extracted for 1986 and 1988 Impacts of IBMPC
• Three Dimensions Identifying Communities in the 1988 Survey
• The importance of other opinions in different communities
• Reliance on members of various communities
• Commitment to members of various communities
• Use of ten media as reported by IBMPC participants