Please don't use URL shorteners when submitting.<p>URL = <a href="http://highscalability.com/blog/2011/10/24/stackexchange-architecture-updates-running-smoothly-amazon-4.html" rel="nofollow">http://highscalability.com/blog/2011/10/24/stackexchange-arc...</a><p>I am nervous that this has 8 upvotes already with a shortened link...
What blows my mind is SE runs on Windows and IIs<p><a href="http://meta.stackoverflow.com/questions/10369/which-tools-and-technologies-build-the-stack-exchange-network#10370" rel="nofollow">http://meta.stackoverflow.com/questions/10369/which-tools-an...</a><p>They basically did an end-run around the $10k SQL Server license.