A fun way to learn more about Ruby on Rails techniques or plugins is by watching screencast tutorials. Screencasts are short movies covering a specific problem or technique. They are very useful if you are planning on building something with a technique you haven’t used before.

Let’s say you are planning on integrating PayPal into your rails app. Railscasts has a clear screencast on that topic, giving you a runthrough and a example of the entire process needed for ingegrating PayPal. 

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