I have seen something very similar in a different thread. You might find some parts of that post helpful, not everything of course, but I think it is worth looking into. 
http://thegioibienquangcao.com/the-different-sorts-of-essays-that-using-the-net-13/
http://genesis.edu.gr/?p=7214
http://tringuard.com/essay-writing-self-writing-and-online-essay-27/
https://ecolxbd.com/the-types-of-essays-that-you-could-spend-money-on-2/
http://jeugdlead.nl/admission-software-and-educational-essays-117/