Ask HN: How to make money with a diary site?

I am running a diary site, on which users can keep their diary both private and publicly. People also comment on each others diary posts (if public). Me and a friend started this as a hobby project a couple of years ago. We have regular day jobs, so we have limited time to spend on the site. So far the google ads pay for the hosting costs, but that's about it (there are not a lot of targeted advertisments for diary posts). We would like to make a bit more money on it (we are not expecting to be able to build a real business out of it though).<p>We have started a test with premium accounts which are about 15 euro a year (about 20 dollar, not much) which gives the user some extra features such as changing the font color, size etc. Only a handful of users applied for it, a lot responded that it is too expensive (yes, the amount is for a whole year and still people say that) and that diaries should be free. There are a lot of users who dislike the idea that we would make money of the site (especially if it is their money). Also, a lot of the users are still in school/students, and can't or do not want to pay for this kind service. We are glad that a few are supporting the site, but do not expect to make a lot of money with it (the money we do get can be used for a tiny upgrade, which leaves us empty handed). My guess is that the money should not come from the users nor the ads.<p>So we are basically out of ideas, so any are welcome!<p>numbers: - active users, that is, the amount of users that logged in this month (20 days so far): 1152 - traffic: 2500 visits a day, of which 56% is direct, 28% is search engines, and the bulk of the rest is from emails send by the application (users get notified of comments etc. if they indicated that they want that) if I read my Analytics account properly