Earlier quoted context omitted.
> I can dedicate the requisite number of hours to a course, but not in the structure a course demands. This seems like a common situation, and I am almost surprised it is not adequately addressed yet.
I'm ready to shell out for it; I'd pay more for linear algebra than, say, a MacBook.
What doesn't work about courses that are already online and complete (say, Open Courseware, most of the Coursera stuff)?
Any that do work? I run into the complement of your problem reasonably often - trying to point technical people to material to help them fill some mathsy gap they need filled for work.