Magical authentication for Rails 3 & 4

A fully featured forum system compatible with Rails 2.3

The Rails 3 in Action project, on Rails 3.1

Ticketee Application for Edition 2 of Rails 3 in Action

The app for Rails 3 in Action, back when it covered Rails 3.0 (prerelease of the book)

The engine from Rails 3 in Action. Based on the best Rails 3.1 forum engine ever (http://github.com/radar/forem).

RSpec + "Bacon" example from Rails 3 in Action