>>1374631
>There's people out there ripping uni textbooks
annas archive, library genesis
>doubtless someone's posting their unit lectures
youtube, usually by professors, otherwise usually shared amongst fellow students as google drive uploads or similar (not centralized)
>>1374666
this, or honestly just finding a video of that topic on youtube that has lots of views.
This is how I go through uni anyway
if attendance is optional, I just skip the class with the ~45minute bumbling lecture that occasionally dips into what weather we're having or current news
and instead find a condensed ~25-30 minute lecture on YouTube that was recorded by a professor at MIT/Harvard/Yale who very clearly practiced multiple times before starting the recording
the vast majority of professor's lectures honestly aren't really worth saving
especially in this post-digital age where opportunity cost is zilch, and you can just watch the best-of-the-best lecture for that material in the same amount of time and price ($0) as your local university/school