by Mary Bellis Updated June 27, 2017 Mark Zuckerberg was a Harvard computer science student when he, along with classmates Eduardo Saverin, Dustin Moskovitz, and Chris Hughes invented Facebook. However, the idea for the web site, the world's most popular social networking page, oddly enough was inspired by a botched effort to get internet users to rate each other's photos. Hot or Not? In 2003, Zuckerberg, a second year student at Harvard at the time, wrote the software for a web site called Facemash. He put his computer science skills to good use by hacking into Harvard's security network, where he copied the student ID images used by the dormitories and used them to populate his new website. Interestingly enough, he had initially created the site as a type of " hot or not " game for fellow students. Website visitors could use the site to compare two student photos side-by-side and deci...