Not only is it the coolest “hands on” tutorial to a programming language I’ve ever seen; it’s also (technologically) quite impressive as a web application, too. I’m talking about tryruby.hobix.com, a stunning tutorial in the Ruby programming language that’s simple enough for anybody to get started and doesn’t require you to install anything. Everything is done through your web browser into a virtual “irb” session.
If you’re a programmer with an interest in Ruby, or just a geek wannabe, it’s a must-see. Apologies if you’ve seen it before: I first saw it today.