I'm enrolled in my second Coursera course - Pre Calculus. My math skills are waning and this course provides the convenience and price (free, except for your time) I'm looking for in a remedial math course. It's being taught by two Ph.Ds from UC-Irvine.
It's a nine week course and class starts Sunday, October 6, 2013.
Here's the link in case you're interested: https://www.coursera.org/course/precalculus