There's a free online course up on Coursera about Maps and the Geospatial Revolution. Focus is on real-world maps and presenting geospatial data in map-form, not in creating maps themselves (though that is also part of the course). However, thinking about these things and how to present data/'stories' in map-form might make you a better cartographer.
I signed up! It's 'only' five weeks, and the course load seems managable.

(So, not directly related to CC3, but probably of interest to mapmakers. Feel free to delete and/or shout at me if it's too off-topic.)