[Air-l] Community "Critical Mass"?

[Jeremy Hunsinger]

I've been interested in this question in the passed and I came to the  
conclusion that it is an ecological question and can't be determined  
outside of the specific circumstances of the individual community.   
There are IRC communities with 5 members that are self-sustaining,  
and there are communities of 100000 that have faded away, like six  
degrees.  I suspect you will get a variety of other responses though.