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The post is actually easy to read and understand. Funny thing is, in the last couple of weeks, there has been a lot of material (podcasts, posts, screencast, etc) on the subject. But it didn't really take off until 37signals mentioned it.

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I wrote it in May. It was well received then, but it has gotten more play now since the 37 signals post on caching. IMO my guide is the definitive guide to the caching system in Rails.

I believe this is the first time it has made it to HN. I've always gotten very good feedback on it. Thanks for your comments.

Is there any screencast other than the Railscasts one?

New Relic has a series of videos on scaling Rails, several of which are about caching. They're a couple of years old but most of the concepts and method calls are still valid.

http://railslab.newrelic.com/scaling-rails

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