Agreed, Bill.  Lots of interesting courses on coursera.  I've just started branching out into non-musical courses.  One of the ones I'm currently taking is "Learning How to Learn", and I'm also signed up for one on beginning programming in python that starts in a month or so. 

Before anyone might get the idea that Coursera is the only place to go, there's actually a lot of free or inexpensive education available these days.  Coursera and the others are called MOOCs, which stands for Massive Open Online Courses.  You can find quite a few of them if you use a search engine.

There are also less formal options, if you just want some information.  I was watching a lecture from Yale this afternoon on the fugue form in music.  It is part of one of their open classes, "Musi 112: Listening to Music", but I didn't have to sign up for the class to be able to watch it, and I just wanted a refresher on fugues for the music class I'm currently taking on Coursera. 

@coolpinkone: I definitely want to take the class again, to try for a better grade, since I know I could have done better.  I also think that one time through that material was just not enough to absorb all of what was given, especially with the masterclasses and all.

I don't know if I'd pay for the "verified certificate" or not, since I can't think of any company or other school that would definitely recognize it.  MOOCs are pretty new, and people aren't used to thinking of work done in online courses as being the same as work done in a bricks and mortar classroom. 

I know that with the other music courses I took, I wouldn't.  "Improving your musicianship" or Songwriting are just not things where having a piece of paper will make a difference.  Even having a bricks and mortar music degree has never gotten me a gig in a band.  LOL

But I know you plan on someday teaching students, and maybe it would be worth having the "verified" option for that, since it is a teaching course.  I haven't really thought much about that side of it, yet.