Recently I have come across one article which I believe you could find useful. Someone will take a steaming dump all over it, however it clarified some of my questions. 
http://www.tandisweb.com/essay-services-writing-academic-papers-have-under-15/
http://taxi-montenegro.me/2016/09/23/admission-application-and-educational-essays-157/
http://www.angelique-piovillico.com/helpful-information-on-lab-report-writing-24/
http://aquainox.cl/index.php/2017/03/30/motives-for-making-use-of-our-writing-an-essay-6/
http://koshermadrid.com/archivos/1257