A Ruby a Day
   Dedicated site. Shows the things author Brian Schröder is doing with Ruby, has a full Ruby course, simple AI game, quiz solutions.
   http://ruby.brian-schroeder.de/

An Invitation to Ruby
   Many links, review, comparison to other languages, code samples.
   http://www.math.sci.hokudai.ac.jp/~gotoken/ruby/

Cetus Links: Ruby
   Link page: describes language, links to central site, FAQs, references, newsgroup, mailing lists, books.
   http://www.cetus-links.org/oo_ruby.html

Comparing and Introducing Ruby
   Short introduction to features, compares Ruby to Perl, Python. [PDF]
   http://www.nt.ntnu.no/users/haugwarb/Programming/ruby_vs_perl_and_python.pdf

Features of Ruby
   By Michael Neumann in English and German.
   http://www.ntecs.de/old-hp/s-direktnet/ruby_en.html

PLEAC-Ruby
   The Perl Cookbook presents a suite of common programming problems solved in that language. This project aims to gather fans of programming to implement solutions in many other languages. [Open Source]
   http://pleac.sourceforge.net/pleac_ruby/

RHDL Page
   Ruby Hardware Description Language, implements EHDL in Ruby. Tar file download. [Open Source]
   http://www.aracnet.com/~ptkwt/ruby_stuff/RHDL/

Ruby
   Ruby QuickRef, code snippets. MetaRuby project status. Ruby Language audit: 1.0.1. RubyConf 2002-05 schedules and online presentations. Ruby Cookbook. [The Language Freak]
   http://www.zenspider.com/Languages/Ruby/

Ruby Central, Inc.
   Non-profit organization dedicated to promoting growth of open source Ruby programming language; manages RubyConf, donation clearinghouse, presence and point of contact for corporate sponsors.
   http://rubycentral.org/

Ruby Code & Style
   Peer reviewed online journal: articles, news, Weblogs, buzz, chapters, forums. Artima Software.
   http://www.artima.com/rubycs

Ruby Matters
   Forum on Ruby language issues, at WordPress.
   http://www.rubymatters.com/

Ruby Programming Language
   Growing article, with links to many related topics. [Wikipedia]
   http://en.wikipedia.org/wiki/Ruby_programming_language

Ruby User Groups
   Ruby Garden Wiki pages for many RUGs, in many nations, on most continents.
   http://wiki.rubygarden.org/Ruby/page/show/RubyUserGroups

Ruby: A Language with a Future
   Hal Fulton's Ruby page, small but growing: links, software, and 'Thirty-seven Reasons I Love Ruby'.
   http://rubyhacker.com/

RubyCentral
   Ruby resource: One-click Windows installer; online copy of Programming Ruby: The Pragmatic Programmer's Guide. [Open Publication License]
   http://www.rubycentral.com/

RubyGarden
   Was site for tracking developments: forum; news, had Ruby News Weekly (like Dr. Dobb's Python-URL); announcements, future shock, biggest Ruby Wiki, useful surveys, links, people, libraries, ports; threads, announcements from ruby-talk mailing list, a.k.a.
   http://www.rubygarden.org/

Top: Computers: Programming: Languages: Ruby
   Description, on Open Site online Open Encyclopedia Project.
   http://open-site.org/Computers/Programming/Languages/Ruby/

Vista Insight Ruby Directory
   Project goal: to be the definitive guide for Ruby programming language and Rails framework; many categories.
   http://ruby.vistainsight.com/

blade
   Site opens with pretty graphic, and otherwise looks thin, but has huge archives of many Ruby mail groups: ruby-list, ruby-dev, ruby-ext, ruby-math, ruby-talk, fj.comp.lang.ruby, comp.lang.ruby, News, News2, Mailing Lists; linux-users.
   http://blade.nagaokaut.ac.jp/

nycruby
   Group of Ruby and Rails programmers who live and work in the New York City area. Merger of ruby-nyc and rubyonrails-nyc.
   http://nycruby.org/

ruby-talk
   Ruby mail list log/archive, powered by Shin-ichiro Hara's Ruby smart archiver.
   http://blade.nagaokaut.ac.jp/ruby/ruby-talk/index.shtml

rubyXML
   Known as <rubyXML/>: news, articles, and links on XML development with the Ruby scripting language.
   http://www.rubyxml.com/