If you need to work with geographic data, Geocoder is an excellent gem for converting addresses and coordinates, finding nearby locations, determining distances, and more! (8 minutes)

The new pushState function in JavaScript allows us to change the full URL with AJAX. This means the back button, reloading, and bookmark support can be easily added. (10 minutes)

Rails 3 comes with instrument support through the ActiveSupport::Notifications class. Call "subscribe" to listen to notifications, and "instrument" to send them. (10 minutes)

If you need a full text search engine, Thinking Sphinx is a great solution. See why in this episode. (12 minutes)

Keep JavaScript out of your HTML content with unobtrusive JavaScript. Here I show how Rails 3 works with this best practice. (13 minutes)

The scoped method allows you to generate named scopes on the fly. In this episode I show how to use anonymous scopes to improve the conditional logic which was used in the previous episode on advanced search form. (8 minutes)

Security is important! Here I show seven different security flaws which are common to Rails applications ranging from mass assignment to CSRF protection. (14 minutes)

Usually a select menu is used for setting a belongs_to association, but in this episode I will show you how to use a text field with auto completion. (13 minutes)

Here's five quick tips to use in views. Be sure to catch the end of the episode where I reveal an exciting contest! (9 minutes)

The stack trace can be a very useful tool when it comes to debugging. Learn the ins and outs of how the stack trace works in this episode. Note: I am using an older version of the Rails bundle here so it might be a little different than yours. The command in the newer version is called Install Plugin and requires you to type textmate_footnotes in the search. (4 minutes)