Redis within a Ruby on Rails application has many benefits. Learn to interact with Redis Server and set it up for caching within your application.

Make your application faster by leveraging memory and caching fragments of your view.

Slow content got you down? Load it later! Use this gem to defer loading of portions of your page until after load. They will be fetched via AJAX and placed on the page when ready.

Dalli is a great interface for Memcached through Ruby.

Wouldn't it be awesome if ActiveRecord didn't make you think about eager loading and it just did the "right" thing by default? With Goldiloader it can!