I think you're understating the capabilities of sql databases. Stackoverflow runs off a single dedicated ms sql server machine: http://meta.stackexchange.com/qu

I think you're understating the capabilities of sql databases. Stackoverflow runs off a single dedicated ms sql server machine: http://meta.stackexchange.com/questions/10369/which-tools-and-technologies-are-used-to-build-the-stack-exchange-network http://meta.stackexchange.com/questions/10369/which-tools-an...