Ruby 1.9: What to Expect
by Sam Ruby
http://en.oreilly.com/oscon2008/public/schedule/speaker/4322
http://intertwingly.net/slides/2008/oscon/ruby19/1
About Sam Ruby
http://en.wikipedia.org/wiki/Sam_Ruby
http://pragprog.com/titles/rails3/agile-web-development-with-rails-third-edition