I love learning, but I often run into issues of scheduling, costs, boredom, etc. So, aside from lots of reading, I find the below sites really great at picking up new skills or enhancing existing ones! A lot of these places even offer courses from top universities ---- and it's all FREE! Some of the sites do have some paid classes, but I have found they often do send out codes for anywhere up to 90% off certain courses and the selection is still pretty great. Happy learning!!