"Ruby is a programming language from Japan (available at ruby-lang.org) which is revolutionizing the web. The beauty of Ruby is found in its balance between simplicity and power.
Try out Ruby code in the prompt on the right."
podcast: Creating Ruby with Yukihiro Matsumoto (Matz) recorded LIVE in Japan on the Hanselminutes Technology Podcast: Fresh Air for Developers
Why Ruby? by Jeff Atwood @ Coding Horror
Jeff selected Ruby for being open source and nice platform and community.