An Experimental Version of the squealer gem http://github.com/delitescere/squealer/

A Ruby DSL for exporting MongoDB to MySQL or PostgreSQL. You don't need to install both, just one. Use EXPORT_DBMS=[mysql|postgres] environment variable to specify the appropriate adapter.

Statistic and analysis in Ruby DSL, just as simple as SQL operations in ActiveRecord.

ActiveMongoid facilitates usage of both ActiveRecord and Mongoid in a single app by providing an inteface for inter-ORM relations.

An engine for search-engine-optimized blog management.

C2 aspires to be a simple, drop in, Admin Portal + CMS for apps based on Rails 3 + Mongoid.

A Rails Engine to control and monitor Rails application from a web interface. It includes content capturing system, real-time traffic monitoring, and real-time performance monitoring. It is built to be flexible and customizable.

A general purpose Rails utility plugin.

Tracks and logs events and sends notifications of events on Active Record models.

The Exception Engine logs your Rails exceptions in your mongodb database and provides a web interface to manage them

Exodus is a migration framework for MongoDb

Facteur allows you add a messaging system in your Rails 3. You can create many mailboxes for your users. They will be able to send and receive messages.

Gatoroid is a way to store analytics using the poweful features of MongoDB for scalability

Async framework for writing API servers

Shared models for Panopticon and Publisher

Simple yet customizable token generator for Rails 3

Minimal CI server with some support for dynamic

You can run your cucumber suites easily, save and see the execution results

it said optional

Manage your organization's workflows entirely through Google Docs and irb. Mobilize schedules jobs, queues workers, sends failure notifications, and integrates mobilize-hadoop, -http, -mysql, and -mongodb packages to allow seamless transport of TSV and JSON data between any two endpoints.