Free Harvard Online Courses
Harvard University is offering free online courses of any subject through their website linked here: online-learning.harvard.edu
With a large range of courses available, you can easily choose a course that suits you, from studying the roots of Buddhism to the principles of biochemistry. This unique opportunity allows you to delve deeper into a subject of your interest with online videos, powerpoints and further reading.
Courses can range in length from 2 – 17 weeks long with different difficulty depending on your choice.
For more information please see the Harvard University website: