[Air-L] Interrelations of "Virtual Communities" and "Social Networks"

[Alexander Semenov]

Thanks everyone for your opinions. 
I've come to the following "working definition": using Ervin Goffmans
frame-analysis concepts we can (?) say, that "social network services" are
material basis of the frame of "network communities" and "virtual community"
is it's symbolic basis. 
Best wishes,
Alexander Semenov.