autoNumeric.js library automatically formats currency and numbers. With an ujs flavor it is now directly usable in a rails project. All credits for autoNumeric.js library its-self go to its creator BobKnothe

Cangaroo helps developers integrating their apps with any service

Adds configurable password policy enforcement to devise.

Allow users to invite other users to join your organization

Allows arbitrary reporting on your ledger using easy-to-write SQL queries

The new de-facto for API testing your Rails application

A user-centric voting extension for Rails 3 applications.

A true Bayesian rating system with scope and cache enabled.

Currently supported editors are CKEditor and TinyMCE

Track keywords search, checkout events, add to cart, remove from cart and other events.

Configurable affiliates and referrals features for Spree

Provides the infrastructure to support the development and use of Stratify collectors and activities

Foursquare plugin for Stratify

Garmin Connect plugin for Stratify

GitHub plugin for Stratify

Gowalla plugin for Stratify

Instapaper plugin for Stratify

iTunes plugin for Stratify

Rhapsody plugin for Stratify

Twitter plugin for Stratify