As soon as I understood what you were offering (make your own courses online!) I wanted to browse example courses that had been released, and it wasn't obvious how to do that.
Course Catalog link at the top. It's also the home page when you are logged in.
Ah, I see. I didn't understand what a course catalog was in this context. Maybe "Browse Courses", or place the link more centrally? Also, it should default to a few examples that are really awesome, not "Most Recent" which is full of garbage at any given moment.