Yes, I did. I took the Writing Fiction with Gotham Writer's Workshop. The course had a great outline and required reading (except when it came to the Great Gatsby - I could never get into that book) but the problem I found is there were so many participants that it became overwhelming to keep up with posting and reviewing.

Have you ever tried this one?

http://fiction.4-writers.com/creative-writing-classes.shtml

It is a free writing class and enrollment is limited. If you sign up for the T-zero: The Writer's Ezine, you will be notified when the next class is taking place.

It was through this course that I developed my novels.