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

Dumps geonames data to feed a local db

Fully featured tree implementation for Mongoid using the nested set model

Userstamp for creator and updater columns using Mongoid

Rails HTML5 FileUpload helpers

Shared models for Panopticon and Publisher

Helena is an online survey/test framework designed for agile survey/test development, longitudinal studies and instant feedback.

https://wasya.co

LocomotiveCMS is a next generation CMS system with sexy admin tools, liquid templating, and inline editing powered by mongodb and rails 3.2

This gem allows developers to create plugins for Locomotive CMS with particular functionality. See the README for more details

Maestrano is the next generation marketplace for SME applications. See https://maestrano.com for details.

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.

Makes it easy to use money with mongoid

Mongo Followable adds following feature to mongoid/mongo_mapper

Implementation of the acts as list gem for Mongoid

Mongoid::AppSettings allows you to store settings in MongoDB, and access them easily

Mongoid::Bitfield stores boolean flags as single property in MongoDB.

MongoidCleaner with drop and truncation strategy

Easy maintenence of collections of processed data in MongoDB with the Mongoid ODM.