Their architecture has been pretty well documented, and can and has handled a good amount of traffic with relatively small resources - http://highscalability.co

Their architecture has been pretty well documented, and can and has handled a good amount of traffic with relatively small resources - http://highscalability.com/blog/2009/8/5/stack-overflow-architecture.html http://highscalability.com/blog/2009/8/5/stack-overflow-arch...