Expanding on antirez... An overview of how we use Redis for caching at Stack Overflow can be found at: http://meta.stackoverflow.com/questions/69164/does-stack

Expanding on antirez... An overview of how we use Redis for caching at Stack Overflow can be found at: http://meta.stackoverflow.com/questions/69164/does-stackoverflow-use-caching-and-if-so-how/69172#69172 http://meta.stackoverflow.com/questions/69164/does-stackover... Our "global inbox" and "frequented tags" features are built on Redis as well. There's a bit of traditional SQL behind global inboxes (mostly for persistence and backup purposes), however.