Azure Redis

https://azure.microsoft.com/en-us/blog/mvc-movie-app-with-azure-redis-cache-in-15-minutes/

https://azure.microsoft.com/en-us/blog/investigating-timeout-exceptions-in-stackexchange-redis-for-azure-redis-cache/

https://azure.microsoft.com/en-us/documentation/articles/cache-how-to-scale/