We use a LOT of open source stuff too. We believe in the best of both worlds -- http://blog.serverfault.com/post/stack-exchanges-architecture-in-bullet-points/

We use a LOT of open source stuff too. We believe in the best of both worlds -- http://blog.serverfault.com/post/stack-exchanges-architecture-in-bullet-points/ http://blog.serverfault.com/post/stack-exchanges-architectur...