Abelo (which means "bee" in esperanto) is a free web management system for retail administration of enterprises. It's possible to manage customers, workers, products and suppliers, make supply control, works like point of sale, beyond financial enterprise management....

ClickSpotter is a real-time web server logfile monitor with IP geolocation support.

ContextR equips Ruby with an API to allow context-oriented programming. You may find more information about context-oriented programming on http://www.swa.hpi.uni-potsdam.de/cop/.

A simplistic script which automates a limited set of rubyforge operations.,

SMC - the State Machine Compiler

SMC takes a state machine stored in a .sm file and generates a State pattern in fourteen programming languages (C, C++, C#, [incr Tcl], Groovy, Java, Lua, Objective-C, Perl, PHP, Python, Ruby, Scala, VB.net). Includes: default transitions, transition args, transition guards, push/pop transitions and Entry/Exit actions....

MacRuby is a version of Ruby 1.9, ported to run directly on top of Mac OS X core technologies such as the Objective-C common runtime and garbage collector, and the CoreFoundation framework.

While still a work in progress, it is the goal of MacRuby to enable the creation of full-fledged Mac OS X applications which do not sacrifice performance in order to enjoy the benefits of using Ruby....

RubyCAS-Server is a Ruby implementation of a server for Yale's Central Authentication Service.

CAS provides single sign-on authentication for web applications. Since CAS is a solid, widely-adopted protocol, CAS clients are available for many platforms and frameworks, including Java, PHP, Ruby on Rails, and others....

A simple issue tracker designed to integrate well with distributed version control systems like git and darcs. State is saved to a YAML file kept under version control, allowing issues to be closed/added/modified as part of a commit.

Forgeos is a set of plugins based on Ruby On Rails. * Forgeos Core http://github.com/webpulser/forgeos_core * Forgeos CMS http://github.com/webpulser/fogeos_cms * Forgeos Commerce http://github.com/webpulser/forgeos_commerce * Forgeos Beast (published soon)...

Sequel is an ORM framework for Ruby. Sequel provides thread safety, connection pooling, and a DSL for constructing queries and table schemas.