utella is a framework to create and run RoomApps

This is a gem to enable OData consumers to pull data from your Rails application.

Add Ogone payments functionality to your Rails application

OldSQL is a Rails Engine database reporting gem that uses plain old SQL

OmniAuth strategy for Goodreads

ruby client for the openfire xmpp-server user_service api

Adds PKCS8 key format support to OpenSSL::PKey::RSA

OpenStack Ruby and RoR bindings implemented with ActiveResource - See also http://www.unicloud.it

AWS S3 protocol support for open-uri

openvpn_management is a ruby gem for openVPN (server) management interface interaction.

Ruby interface to 'optipng' tool.

Connect your RAILS app to OTRS/ITSM

Smart fields for your forms, similar to Formtastic or SimpleForm

Ruby library for the FaxJob portion of the PamFax API.

Paybox System e-commerce gateway Ruby implementation

Ruby implementation of the PayPal Permissions API.

A rails helper to display a PayPal subscribe button.

phpass for ruby

Use picturefill with Rails :)

Use PIE in your Rails apps :)