Well, I haven't published because I haven't links or info on half of them yet, but my track collection has reached 820 points. The images on "world distribution of Ciro's tracks", or WDCT for short

are the following:
Europe-Africa

Notice the incredible density of dots and how hard is to find tracks at the "fringes" of the european block.
On Turkey, even if you agree with MC no-nonsense and DaveKillens matter-of-factness, I add that the distance from Wien (Vienna) to the Istanbul track is less than 1.300 km (800 mi, you can barely see a couple of red dots and the white line that joins them). My country (a medium-sized one by all standards I know) cannot fit in such a small space, a distance that you can cover in one or two days by car, given a border free, decent road. This is a good picture of the F1 world, for my taste.
I dare to say that the sharp geographical divide Manchild perceives is a historical one, that has 2.000 years of history behind and that involves "what geography is". Perhaps Spain does not feel the same sharp divide, but only because it coexisted with muslims for 700 years (so much for the capability of money to "bend" history). Slavic european countries have been independent of Turkey/Bizancio only for the last 200 years or so, and the "war frontier" remains, but seen from afar, is completely ideological, not physical. In my personal clasification that you don't have to share, Israel couldn't be more european. So, I vote for f1.redbaron position.
Asia-Oceania

I take this as a good example of how racers come from racetracks and viceversa (it is the same with, let's say, cricket fields and cricket players). New Zealand, Japan and Australia concentrate most of the WDCT.
America

First thing that comes to my mind is that if there is a people on Earth mistreated by the F1 world (according to WDCT

) is the Argentinian one. My heart aches

with the proposed Interlomas location, instead of wisely including the land of Fangio and Reutemann (well, and the land of Fontana, why not?). These poor people, the refugees of the F1 United Nations, the expoliated by misfortune, have more tracks than tango ballrooms.
The Scandinavian remark by Tom is, as usual (go Tom!

), justified. I did not want to clutter this post with a close up of Europe, but surely they have a lot of tracks (and, according to my theory, consequently they have racers) and their F1 events have been few.
Second one is that "mighty" North America and the sweet Caribbean are "lost" for F-1. Period. NASCAR rules, my friends, and
is the sport with more live spectators in the world. Double period.
Finally, I only add that is sad to build tracks in the middle of the desert when you could race besides a coral beach in, I don't know, Colombia, for example

. However, I am starting to think Mosley has no taste (and very poor maps).