Nice looking site! I worked on something similar a while ago, but it didn't look nearly as good as this.

The problem I faced was in attracting users without one key compelling subject area. Saying "this is a platform for every type of class" is awesome in theory, but it's hard to find people who are just browsing around for random classes.

I'd love to be able to browse at least one complete course without having to login, also.

On a sidenote, livereload is still linked in your javascripts, and is hitting localhost. You might also want to concatenate and minify the js.