I totally agree, I mean you can find good courses on Udemy but they are mostly beginner focused. I have tried coursera for advanced courses. Last but not last

I totally agree, I mean you can find good courses on Udemy but they are mostly beginner focused. I have tried coursera for advanced courses. Last but not last I try to watch recorded conferences talks for advance concepts or read blogs which are shared on hackernews. I recently found out about this : https://www.destroyallsoftware.com/screencasts https://www.destroyallsoftware.com/screencasts this guy makes really good screencasts and covers some advance concepts. For Conferences you can checkout: Pycon,CppCon,ConFreaks and GOTO Conferences.