The following resources are good & FREE
- tryruby
- rubymonk
- ruby.about.com
- Programming Ruby(http://docs.ruby-doc.com/docs/ProgrammingRuby/)
- http://www.codecademy.com/tracks/ruby
- http://rubylearning.com/satishtalim/tutorial.html
- ruby.learncodethehardway.org
- rubykoans.com
- https://learn.thoughtbot.com/ruby
- http://iwanttolearnruby.com/
- http://www.tutorialspoint.com/ruby/
- http://ruby.bastardsbook.com/toc/
- http://ruby-doc.org/
- http://pine.fm/LearnToProgram/
- http://mislav.uniqpath.com/poignant-guide/