8. The method of claim 7 , wherein controlling rendering further comprises: under control of the a first computer, transmitting a command for sharing the document to a second computer for transmission to the one or more additional attendee computers, such that the command is executed synchronously at the first computer and each of the one or more additional attendee computers.
8. The method of claim 7 , wherein controlling rendering further comprises: under control of the a first computer, transmitting a command for sharing the document to a second computer for transmission to the one or more additional attendee computers, such that the command is executed synchronously at the first computer and each of the one or more additional attendee computers. 9. The method of claim 8 , further comprising: under control of each of the one or more additional attendee computers, receiving the command from the second computer; and executing the command to render the document in synch with the first computer.