Calagator is an open source community calendaring platform

Monologue is a basic blogging engine. It is a Rails mountable engine so it can be mounted in any 4.0.X + apps

A simple gem for using Backbone with Rails (>= 3.1), based on thoughtbot's 'Backbone.js on Rails'

FullCalendar is a fantastic jQuery plugin that gives you an event calendar with tons of great AJAX wizardry, including drag and drop of events. I like having managed pipeline assets, so I gemified it.

Multimedia story telling for the web.

A Rails-based frontend to the Resque job queue system.

Rich is an opinionated WYSIWYG editor for Rails based on CKEditor.

Rich is an opinionated WYSIWYG editor for Rails based on CKEditor.

PJAX integration for Rails

ActiveAdmin hacks to support Mongoid (some ActiveAdmin features are disabled)

A quick and easy way to visually test out your application's API.

Ruby on Rails data listing gem with built-in sorting, filtering and in-place editing.

A simple cms and blogging engine for rails apps.

A Rails-based frontend to the Resque job queue system.

A Rails-based frontend to the Resque job queue system.

A lightweight CMS toolkit for Ruby on Rails, based on Bootstrap.

XDan's jQuery DateTimePicker packaged for the Rails Asset Pipeline

Integrated user activity notifications for Ruby on Rails. Provides functions to configure multiple notification targets and make activity notifications with notifiable models, like adding comments, responding etc.

Phrasing!

Chanko is a Rails extension tool