RubyCAS-Client is a Ruby client for Yale's Central Authentication Service protocol -- an open source enterprise single sign on system for web applications.

This is the generator for a Ruby on Rails framework, that creates scaffold for AJAX applications.
!!!! THIS HAS BEEN DEPRECATED IN FAVOR OF ACTIVESCAFFOLD (activescaffold.com) !!!!

Ruote is an open source Ruby workflow engine,

Ramaze aims to be a simple open-source web-framework based on Ruby.

It provides several—easy to understand and fully documented—abstractions useful for the daily work of a pragmatic web developer.

The primary goal of Ramaze is to be of use to as many people as possible. This can be achieved by providing a modular framework that can be split and selectively replaced and/or configured by the developer....

rbot is a ruby IRC bot. Think of him as a ruby bot framework with a highly modular design based around plugins.

By default he behaves a lot like an infobot.

An interface library that allows Ruby or Ruby on Rails applications to easily connect to the HTTP 'Query API' for the Amazon Web Services Elastic Compute Cloud (EC2) and manipulate server instances.

Hobo is an Open Source extension to Ruby on Rails which helps you build full blown web applications incredibly quickly and easily. Available as a Gem or Rails plugin, Hobo provides a simple, clean and elegant development framework which allows for rapid prototyping or production of the most sophisticated web applications....

Used for submitting your songs to Last.FM/Audioscrobber. xmms2-scrobbler is an XMMS2 client, written in ruby, using the "event-loop" gem, compatible with the Audioscrobbler Realtime Submission Protocol (v1.2).

Ruby Enterprise Edition is a branch of Ruby, which includes an enhanced garbage collector and developer tools. This allows one to reduce memory usage of Ruby on Rails applications by 33% on average.

XMPP4R is a XMPP/Jabber library for Ruby. Its goal is to provide a complete framework to develop Jabber-related applications or scripts in Ruby.