Things remained pretty same-same the last few months. So this month I hoped to have a top international Drupal websites stats page up, but the international one hits all 15 000 top sites and some of those domains look pretty scary, so I set the international version up on it's own vHost just to be extra safe. The South African one also just analyses .za domains of the top 15 000 that are accessed by South Africans while the international one analyses all 15 000 in it's list. That's about six times as much work to do and I've rolling cURL gives my a headache, so it's still a serial script for now.
At the time of writing the site the first time, being a Drupal labor of love project, I also wanted to familiarize myself with stream wrappers. This month's iteration was run on the old, trusty and familiar cURL methods again (that part of the site was rewritten). It was a bit faster (took about 20 hours to handle the SA sites (international is still a day or two from being done) but also slightly more robust. nfvf.co.za wasn't even picked up last month (must have failed that request).
All that just to get to the point that comparing this and last month's stats may only be useful in the ranking changes. Don't read too much into things like IIS losing so much ground to Open Source web servers. That's likely just better statistics this month.
http://top-sa-drupal-sites.burtronix.co.za/report/2013-06-02
Looking forward to see the list of top Drupal sites internationally. Quite excited about it. Maybe it's a good idea to do a few different countries. England, China, OZ, Zim ;-)