Refactoring Rails Product to Teach Refactoring

I’m thinking about creating a new product that teaches how to refactor Ruby on Rails applications. I want to go deeper into the “how to refactor Rails” than Refactoring Redmine and I’m wondering if there is a better way to do this than a PDF ebook.

Could you take a minute and let me know what you think in the survey below?

Embedded survey, only shown on the site.

Thanks

Eric Davis

P.S. Feel free to leave a comment or two below if you want a public discussion.