rails-cache

basic

• Twiwt:Blog / jugyo : Rails.cache の使い方
• Ruby on Rails Guides: Caching with Rails: An overview

Redis

config.cache_store = :redis_store

http://stackoverflow.com/questions/4221735/rails-and-cach…

• ruby on rails - Setting the cache_store in an initializer - Stack Overflow

Memcached

• Rails3からmemcachedを利用する | Banana Systems 株式会社