Sorry if these have been posted before, but I'm brand new both to the forums and to the game.  I'm looking for your opinions on a couple of issues.

First off, how common is magic among humans? My first guess is that wizards of Harry's caliber are about 1 in two to three million. (Chicago could have one or two, New York would have two or three.)  But that would mean that there are more than three thousand worldwide.  Does that sound right?  I further suppose that Focused Practitioners and Minor Talents would be about one thousand times more common (but of course, many of these would never develop their abilities). Even so, that would mean that there are three or four million worldwide, and a big city like Chicago would have one or two thousand.  Does this seem to high?

Secondly, how is the Paranet organized?  When reading the novels, I got the general impression that it was very organized, something along the lines of clandestine cells where each member would know a couple of others at their own organizational level, one or two at a lower level, and one at a higher level.  This level of organization would require considerable management, however.  The more I think about it, the more it seems likely that it's much less organized, maybe something like the informal network of a garden club or a church.  What do you think?   Further, to what degree can minor talents use the internet?  (Cause if there are as many practitioners as I suppose, magical chat rooms are gonna be all over the internet.  And while we're on the subject, to what degree are minor talents aware of the White Council and the wider magical world?

Thanks for your time, Jett.