Awhile ago I talked about how I like the fact that I can find free courses on pretty much anything I want to learn on the internet. Thanks to the blog zenhabits written by Leo Babatua, I have some more sites to share with you. His blog post is about Unschooling for kids, but I figure that can apply to adults like me as well.
Since I am ripping off his resources, I'll give the link to his blog first:
http://zenhabits.net/
The first place I checked out was https://www.coursera.org/courses I have already signed up for 2 courses there, one on Computational Investing and one on Cryptography. I'll be in waaaay deep, but maybe it will fire off some of the lazy brain cells that haven't worked much for a long time.
The next site I checked out was http://selfmadescholar.com/b/ which seems to be a listing of available courses online listed by subject.
I just spent 10 minutes doing a vocabulary game. I got to level 45 out of 60 before I really didn't know the words. I consider my vocabulary to be above average. Test yourself at http://freerice.com and let me know if I really do have as large a vocabulary as I think. : )
For more fun go to Leo's post and click away. The list of learning resources is at the bottom of the post.