- 24 extremely useful ruby gems for web development
- Ruby User Guide
- Programming Ruby, The Pragmatic Programmer’s Guide
- PHP to Ruby
- Things That Newcomers to Ruby Should Know
- PLEAC Ruby
Ruby on Rails
- Ruby on Rails tutorial — Learn Rails by Example
- Dresssed — the most gorgeous, complete and flexible themes you’ve ever used, or it’s free.
- virtus — This is a partial extraction of the DataMapper Property API with various modifications and improvements.
- YAML for Ruby