Michael Hartl's "Rails Tutorial" is probably one of the most up-to-date and comprehensive tutorials: http://ruby.railstutorial.org/ http://ruby.railstutorial.or

Michael Hartl's "Rails Tutorial" is probably one of the most up-to-date and comprehensive tutorials: http://ruby.railstutorial.org/ http://ruby.railstutorial.org/ There's also the latest Agile Rails Development book, which covers 3.0.x: http://pragprog.com/titles/rails4/agile-web-development-with-rails http://pragprog.com/titles/rails4/agile-web-development-with...