Ruby Programming
- ruby-lang.org and
documentation
- Programming Ruby, The Pragmatic Programmer's Guide, a nice
synopsis of the language from this guide
- Try Ruby - interactive Ruby shell in your browser
- Ruby User's Guide
- Ruby Tutorial with code samples (from Fincher)
- Learn to Program by Chris Pine
- Download Ruby ebooks
- Ruby language - strings, regular expressions, ranges, data structures, code blocks and iterators and procedure objects
- Data structures in ruby