Add some advertising. No pop-ups mind you but the usual banner on each page like Gunblast, Boxotruth, Slickguns, and so on does. Every time I visit them I click on at least three advertisers. As someone who owns a few websites I can say they are not cheap if you pay for the good stuff that really makes a website work. And folks are getting a use out of your site so if they can't take the time to look at the ads and at least pick one then they have no room to complain when you guys stop self-funding the site.
Plus the more money the site takes in, the more you can invest in improving the site from a time or tech perspective. It's not an entirely original idea but it is a unique website at this time. I hope to see it grow in the future.