Let's look at a scenario. You've been working on your site for a month or two now, and you feel like you've mastered the basics—all the topics in the Training » For everyone and » For managers sections are familiar to you. Now, you find yourself looking critically at your site and thinking, "I feel like I should be able to do more with this."
How you define more is the beginning of the discussion of whether or not you should consider becoming a Site Builder.
You've decided to subtheme your site. Huzzah! But, it's quite possible you're never done this before and you're not even sure what that means or where to begin. Making the decision to be a Site Builder and create custom elements for your site is a significant undertaking, but we want to give you a brief overview of what's involved in the workflow process to help you get started.