With the arrival of online courses, from MOOCs to SPOCs to everything in between, the question becomes not if there’s a course for your particular interest, but rather where it is that you can find it.
To help with that, the site Online College Courses has been created, providing a list of open college courses from Harvard, Stanford, Princeton, and even courses from Oxford. Just remember when you go that the large blue area at the top of the page is actually a sponsor’s link. The useful information is below that, starting with the “Browse by Category” tool. Find it at: http://www.onlinecourses.com/