Implementation of the Trello API for Ruby
ActiveModel::Serializer implementation and Rails hooks
IndexTank Integration with your fav ORM
Database Sharding for ActiveRecord
RESTful Single Signon Plugin is a WordPress plugin that allows you authenticate WordPress users with a RESTful identity provider, such as a Rails application using Devise.
Provides a simple way to add rating functionality to your application.
jQuery edit in place plugin. Extendable via plugin architecture. Plugins for plugin. Really.