Test Automation U. just released a new online course today: Introduction to Capybara. Here's the link:

https://testautomationu.applitools.com/capybara-ruby/

For those not familiar, Capybara works with Ruby and is a domain-specific language (DSL) that comes with built-in methods that allow you to visit a page, fill in a textbox, click a button, click a link, check a checkbox, choose a radio button, or select an item from a dropdown and search within a section of the page.

The instructor is T.J. Maher. You can read more about his background here:

http://www.tjmaher.com/

Hope you like it!

(Disclosure: my company sponsored the creation of this course, and has a small link to our site at the bottom. That said, Capybara is free open-source software that is unconnected to my company. The instructor is not an employee of my company.)