For those who want to try to learn coding (programming):
http://www.codecademy.com/-- Free courses there.
EDX also has some good courses on programming.
For people who'd like to get into web design and scripting/programming/development there are free courses and "type and try out the code in your browser" lessons and demos:
For those who want to learn another language for free:
If you want to learn about Criminal Law (USA) by reading a fun, informative comic strip series:
For those who wish to learn a variety of subjects, from elementary level all the way up, you should really check out Khan Academy:
They have everything from basic math all the way up, chemistry, biology, and tons more. All free. The guy who founded it and puts a lot of content up on there has I think like 5 PHDs. It's video lectures, tests and lessons in you web browser, etc.
Edited by niemandgeist, 04 March 2015 - 08:03 PM.