This is a ShowOff presentation from AdhearsionConf 2011.
You can see this presentation on heroku.
You can also pull down the slide "code" (it's in markdown format) and run/modify it as you please.
If you want to see it locally, you need to install showoff and related gems:
git clone git://github.com/sfgeorge/ahn-2011-surveys
cd ahn-2011-surveys
bundle install
bundle exec showoff serve
Then go to localhost:9090 to view the presentation.