What is the best way to market a new green wedding planning class?

My company just launched a four week online self-paced course certifying green wedding planners.
I am working with another company to market it to community colleges, but want to also advertise it directly to potential students.

In addition to putting information about the class on our site, our FB page, and purchasing Google ads, I am looking for tried and true, as well as creative and out-of-the-box, ways to get the word out about this new and important resource. Ideas?