Think about who most needs to be co-located. Finally, realize that the alternatives to co-location are not equal. Consider them in terms of the electrical engineering concept of bandwidth. E-mail requires very little bandwidth to communicate electrically, but it can t communicate graphics, emotions, sounds, or tempo. The telephone requires more bandwidth, but provides some communication richness.
Video is broader bandwidth still, and is also richer.
The books listed above will help you judge when each medium is needed. Please report any problems you encounter. Copyright 2001 by New Product Dynamics. All Rights Reserved.