Related sites:

• rubylearning.com

  Ruby Tutorial - Learn Ruby

  

• rubular.com

  Rubular: a Ruby regular expression editor

• rubyinstaller.org

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• rubies.com

  Rubie's - World's Largest Costume Manufacturer & Supplier

  

• rubi.com

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• ruby.or.jp

  Ruby Association

  

• betterspecs.org

  Better Specs { rspec guidelines with ruby }