I'm looking for an online photography course.

I've been away from photography (real photography, I take plenty of phone pics) for some time and I'm looking to get back into it. I understand the basics of operating the camera and composition. I used to have a dslr and a collection of Minolta SRTs that I stupidly gave away. I'm looking to return and to have some guidance taking my skills to a higher level, and I'd like to do it in a more formal way than posting my photos here for everyone to shit on.

So I'm looking for a solid online course, geared to more advanced learners than raw beginners, that isn't too terribly expensive. What's out there?