Boundaries and Isolation

I understand the idea that communications breaks down or "erases" boundaries like we just talked about, but in this reduction of isolationism in the vast new social network that's arising, are we also creating a new sense of isolationism? Is the divide between those who interface with the internet and those who choose not to creating a different front? Or is there a way to break this down?

Equally, is this new form of social interaction a substitution for face to face contact? How can or do internet connections relate to social interation and how will it change the way in which we create, develop, and maintain our lives in terms of those around us?

I think you could argue that we are already with facebook, myspace, etc. but is there something even more personal to come? How will we extend the tactile onto/through the internet?