For a well-written tutorial on Ruby, goto:
[edit: & don't forget the 'l'
The Ruby home page: www.ruby-lang.org/en/
for Ruby On Rails, goto: www.rubyonrails.org/
On the newsgroups (usenet), it's: comp.lang.ruby
For those not familiar, Ruby is a fully OO language, a tad more flexible than C++, (not as strongly typed), and (imo) a good deal less complicated. It includes handy text searching/replacement, etc., similar to Perl. It's an interpreted rather than compiled language.
The code reflects the "clean" design of the language. It's no problem to having integers, strings, and floating point in the same array - no special coding required, for instance.
Warning: The tutorial is SO well-written that you'll want to learn Ruby, even if you had no interest in the language, beforehand.