An idea a day: 5. Develop an advertising company which sponsers the publishing of newsletters / fryers for university societies, in return for the rights to put ads on them. As the ad channel is so targeted, most of them are university students, and the circulation is so vast, over 100k people in 7 universities in HK, if the company can unify all the societies to join the campaign, it should have a great bargaining power for high ad fee.