by how many people you have found here that you knew from your past but didn't expect to be here
or
even more so how many people you meet here and after getting a chance to know them, learn they know some of the very same people you do? (for example I met a woman here on the board whom I have never met personally but she knows some people that I grew up, even the 'brother' who gave me my first kiss.. how funny..
It always amazes me what a small world it is.