A discrete, colored Petri Net DSL and executor

Semantic is a UI component framework based around useful principles from natural language.

A ruby clone of http://gitstats.sourceforge.net/ with more flexible template system

A minimalist queueing DSL for Beanstalk.

ruby on rails plug to convert any currency into another using the daily rates published by the european bank

A web spider written in Erlang.

Keith Rarick's ruby client for beanstalk