At this years QCon, wooga gave a pretty interesting talk about their history of making there online games infrastructure more scalable.
The slides of this talk are available online:
http://qconlondon.com/dl/qcon-london-2012/slides/JesperRichter-Reichhelm_GamesForTheMassesHowDevOpsAffectsArchitectureDesign.pdf
There history led from PHP to Ruby to Redis to Erlang and (maybe) finally to Erlang combined with Ruby in 2011.
Let’s see what will be the next and when 😉
So pick up a coffee and enjoy to browse through the slides!
Wooga System Scalability