The Little Book Of Ruby

Start with our free eBook on Ruby programming. Ten chapters plus source code.
Free download

The Book Of Ruby

For a more in-depth tutorial, see:
 The Book Of Ruby (available from No Starch Press).
 An earlier edition of The Book Of Ruby (for Ruby 1.8 only) is available for free download

Ruby Central

Online guide to Ruby including text of first edition of ‘Programming Ruby’( aka ‘The Pickaxe Book’)
http://www.ruby-doc.org/docs/ProgrammingRuby/

Ruby Documentation

Lots of programming articles. Includes useful online documentation of the Ruby class library.
http://www.ruby-doc.org/ (main site)
http://www.ruby-doc.org/core/ (class library)

Ruby-Lang.org

The source of the latest Ruby downloads, news, FAQ and more.
http://www.ruby-lang.org

Ruby On Rails

Home of the Rails web application framework for Ruby.
http://www.rubyonrails.org/