snergly. Maze algorithms in Clojure (from Jamis Buck's "Mazes for Programmers" book)
24smithereen. Smithereen is a Ruby library for building Top-Down Operator Precedence parsers.
7rspec-unit. Adds test/unit compatibility to Rspec.
5hirsute. A Naked Objects framework for Ruby
4calfilter. A small library to assist in writing filtering programs for icalendar files or streams.
4sinatra_talk. Talk and sample code for a talk on Sinatra
2bindery. Easy ebook packaging with Ruby
1homebrew. Packaging system for Mac OS X 10.5 and above; heavy optimisations, no redundant packages and a bonus beer theme
1basic-computer-games. An updated version of the classic "Basic Computer Games" book, with well-written examples in a variety of common programming languages
1slowomtrans. demonstration of a performance issue with om next
1