Notes on Group Analysis) by Clay Shirky

1. How many people?
XS ~ 6
S ~ 12
M ~ 50
L ~ 100
XL ~ 1000

2. How was it founded?
happened --- external/internal ---planned

3. What constitutes membership?

4. How tightly bound are the tools?

5. What is the boundary condition?
center --- edge --- horizon

6. What keeps people coming back?

7. Do People in the group transact?

8. Does the group act?

9. How much "real world" is there?

10. How synchronized are the interactions?