In these minutes the hamsters at RubyForge.org are crunching the new Whois version 0.8.0 and the Ruby gem should be available for download in a moment.
Learn how to create a rake task to open a new irb session preloading your custom library.
Preview of some Ruby Whois 0.8.0 new features: WHOIS Answer object and WHOIS data parsers.
Capistrano provides 5 super helpful methods you can use to transfer files and resources from your local machine to remote servers and vice versa.
Reading source code is the best way to progress to higher levels of understanding.