I have gone through this book http://www.compendiumdev.co.uk/selenium/ which is excellent and I highly recommend it to everyone! I was wondering if there is a similar book/tutorial with a Ruby focus that anyone would recommend?
Is this the sort of thing you are looking for ?
I would highly recommend Cucumber & Cheese (A Testers Workshop) by Jeff Morgan.
I recommend Selenium Design Patterns and Best Practices. Great book for learning Selenium and Ruby, and what is even more important for learning best test automation practices along the way.
I know this post is a few years old but I wanted to bring up another option.
My company bought a copy of the ruby version of The Selenium GuideBook by Dave Haeffner, who also does the Elemental Selenium Tips newsletter. The book costs about $60 but is very much worth it. I've gone through the book a few times, using the code examples and I love it. Got me up and running using Selenium WebDriver using Ruby and RSpec doing automated acceptance tests.