Learning

Books

• Agile Web Development with Rails by David Heinemeir Hansson
• Crafting Rails Applications by José Valim
• Design Patterns: Elements of Reusable Object-Oriented Software by Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides
• Everyday Scripting with Ruby
• HTML5 and CSS3 by Brian Hogan
• Learn to Program by Chris Pine, good Ruby book for first-time programmers
• Metaprogramming Ruby
• The Pragmatic Programmer ("From Journeyman to Master") by Andrew Hunt and David Thomas
• Programming Ruby 1.9 by Dave Thomas, Chad Fowler. This book is also called "The Pickaxe" and is the unofficial bible of the Ruby language
• Refactoring: Ruby Edition by Jay Fields
• Refactoring in Ruby by Kevin Rutherford
• Release It!
• Ruby Best Practices by Gregory T Brown
• Ruby on Rails Tutorial by Michael Hartl
• RSpec Book ("Behaviour Driven Development with RSpec, Cucumber, and Friends") by David Chelismky, Dave Astels, Aslak Hellesøy, Bryan Helmkamp
• Version Control with Git
• xUnit Test Patterns: Refactoring Test Code by Gerard Meszaros

Blog Posts

• Roadmap for Learning Rails by Wyatt Greene

Podcasts

• Ruby5
• The Ruby Show
• Ruby Rogues

Screencasts

• RailsCasts and AsciiCasts
• PeepCode
• Remy's Screencasts
• Classy Web Development with Sinatra
• Test-Driven Development by Kent Beck
• A Metaprogramming Spellbook by Paulo Perrota
• Vim for Rails Developers by Ben Orenstein
• Ruby on Rails Tutorial by Michael Hartl

Exercises

• Hiring puzzles, Puzzle archive Not ruby-specific, but challenging.

• Ruby Koans Great for beginners?

• Rails For Zombies

• Conway's Game of Life

• Puzzlenode

Contribute!

• Fork any open source project on github, find an interesting "issue" or feature request (e.g. a Rails issue, hack away, send a pull request and be hero.