Hi all -- I've created a site called ruby-versions.net, on which I'm giving out shell accounts. The site gives you command-line access to Ruby versions dating back to 1.0, and several modern Ruby interpreters inclusing JRuby, Rubinius, and Ruby Enterprise Edition (as well as MRI 1.8.6, 1.8.7, 1.9.1, and development snapshots). To get a shell account, please start by reading http://ruby-versions.net, and use the link there to email me. That will help me semi-automate the process. ruby-versions.net is an EC2 instance, which means it's potentially a bit volatile.... I haven't decided how aggressively to back stuff up. Please treat it as a place to try things out, learn about Ruby history, compare versions and implementations -- but not as a development platform or a place from which to operate Internet services. Have fun! David -- David A. Black / Ruby Power and Light, LLC Ruby/Rails consulting & training: http://www.rubypal.com Now available: The Well-Grounded Rubyist (http://manning.com/black2) Training! Intro to Ruby, with Black & Kastner, September 14-17 (More info: http://rubyurl.com/vmzN)