The University of Oxford features many different podcasts. Most are public lecture series or lectures from visiting professors, with several different recordings available. The advantage to this particular site is that podcasts are organized into series, making it easy to subscribe to multiple lectures on one topic. This is another great site for thoroughly in-depth lectures.
Partnering with many post secondary schools, Khan Academy offers a useable, well-organized interface. Also curating many courses from around the web, Khan Academy offers impressive depth on many different subjects. Among the more well-known educational sites, Khan Academy is also incredibly user-friendly, which may make it easier to keep learning goals. If you’re looking for a free online education, you can’t go wrong with Khan Academy.
Coursera is a website that partners with universities and organizations around the world. This brings a wide variety of topics and perspectives to one searchable database. Coursera is a powerful tool for free online education and includes courses from many top universities, museums and trusts. This gives the site an extremely wide range of in-depth courses. Coursera is extremely useful if you’re looking to study many different topics, or want courses from different schools and groups. However, the free courses are now quite limited, so you’ll have to