Ruby Programming

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