For one of my courses (subject is history related) I have to write a longish (currently 40 pages) article about a topic.
I feel a bit bad, because I worked a 3 digit number of hours and only one person (my professor) will ever read it.
In the previous courses I have either
Put the PDF on my university webspace, and hope Google will spill it out to someone interested in the topic.
Distill Wikipedia articles out of it. This has the disadvantage that it takes additional time to change the formatting etc to make the content Wikipedia compatible.
Are there any other uses?