This is a 20x20 talk about the showoff gem that I gave at LRUG's February meeting. The talk was recorded here if you want to watch it.
You can view this presentation if you install version 0.0.5 (or perhaps later) of the showoff gem.
$ gem install showoff
$ git clone git://github.com/mocoso/showing-off-with-ruby.git
$ cd showing-off-with-ruby
$ showoff serve
And then open localhost:9090 in your browser.
Press 'p' to get the slides to change automatically every 20 seconds.
This presentations is released under an attribution and non-commercial Creative Commons License.