Enumerated attributes with I18n and ActiveRecord/Mongoid support
A library for setting up Ruby objects as test data.
Complete Ruby geocoding solution.
Ruby on Rails
An example Rails 3 App with authentication using Devise and OmniAuth. Tutorial included
Refinery CMS engine to manage copywriting, application wide or per pages with i18n.
A set of Rails responders to dry up your application
Forms made easy for Rails! It's tied to a simple DSL, with no opinion on markup.