You know how last week I said I'd post something short and easy? Well this is it.
Two places to get general continuing education, which I have been enjoying for some time now:
The Khan Academy, free bite-size videos, usually in the 10-minute range, and exercises to practice what you learn, all free. It's heavily weighted toward math as that's how the whole thing started, but with quite a few other subjects as well. The site also has badges you can win if you like that sort of thing, and you can track your progress through the videos and exercises. You don't have to start at the beginning; I jumped into calculus and linear algebra because I wanted to refresh both of those. (The majority of the math I do at work doesn't use either of those, so I was way out of practice.)
The Teaching Company, multi-lecture courses on a wide variety of subjects. The courses look very expensive, but if you find one you want, just wait for it to go on sale. Everything goes on massive discounted sale at some point during the year, and a lot of the stuff I've looked at goes on sale in the under $40 range for audio-only download. (They also do video download, and CD/DVD shipping for audio/video respectively, as an option for the majority of courses. Those tend to be more expensive.) For 12 hours of audio lectures given by a noted expert in the field, I think it's a pretty good price. (But if you want math, go to Khan Academy. You can't beat both free and fantastically clear explanations.)
I hope some of you find those resources useful.