StudyScraper
Studydrive is a website I have been using for the past years to get access to free learning materials provided by other students. But a few months ago they added a new premium subscription and you can no longer download documents without paying for that. However since you can still view the documents on their website it is quite simple to make a program which allows you to still download them. This is exactly what I did and it is available here
Update: I had to take this down, see here for more information