Prawn is an excellent Ruby library for generating PDF documents. Learn how to use it along with the Prawnto plugin in this episode. (10 minutes)

This episode finishes up this series on Rails 2.3. Here you will learn about several smaller additions in 2.3. (9 minutes)

Rack middleware is a way to filter a request and response coming into your application. In this episode I show how to modify the response body using middleware. (12 minutes)

Rails Metal is a way to bypass the standard Rails request process for a performance boost. In this episode you will learn how to shave off a few milliseconds using Metal. (9 minutes)

Rails 2.3 brings us much of the same functionality as the Rails Engines plugin. Learn how to embed one application into another in this episode. (8 minutes)

In Rails 2.3 you can provide a template when generating a new Rails application. See how in this episode. (11 minutes)

Creating drag & drop sortable lists is fairly easy using Prototype and the built in helper methods. See how in this episode. (8 minutes)

PayPal Express Checkout is easy to add to an existing ordering system. See how in this episode. (15 minutes)

In this episode I show how to add Active Merchant's functionality to a Rails application to make a fully-functional checkout process. (18 minutes)

Active Merchant is a great library for handling credit card transactions. In this episode I will show you the basics of using it to communicate with PayPal's gateway. (10 minutes)