As the title suggests, I am looking for an online source for self studying physics. I am also interested in mathematics so if there is something for this to I am very interested. I want to learn it in university level. now I need classical mechanics but I believe in the future more advanced topics will be required. I've already purchased some old books online, waiting for them to arrive, but I will be happy to hear about something similar to MIT OpenCourseWare to watch some lectures or videos with good explanations. I used Khan Academy for a few days but it's not exactly what I was looking for... I also heard about edX. do you recommend any of these? or do you know about other sites which can help me?