I was hoping someone might be able to give me some tips as I seem to be in a catch 22 situation. I have a site that lets users review and leave comments on student landlords. I started off by just getting a few mates to leave reviews but now need more users to come and leave them to get the site fully working. Problem is that without much content (reviews) initially I can't get traffic to my site and no one will want to go to the effort of leaving a review if the site seems small with a limited number of posts.

Considering this, how do I go about attracting more visitors and getting them to leave reviews? I'm a student myself so have no money for advertising or anything like that. Currently I'm only getting a few hits a week and its been up for several months.

Thanks in advance for your help.