Hello, I recently started building a forum, and obviously I want to see a way to earn money to be able to pay for my server.

I was reading this and other forums to seek ways of advertising, but I have not found any, in my view, good enough to use:

The forum, among other things, will serve to file sharing what we like (games, movies, books, etc., etc., etc.). This leaves Adsense discarded for me.

My original idea was that before each download there will appear a pop-up or a page with banners, or forcing them clicking on ads, but I think that most companies prohibited this.

So, please, if anyone knows any kind of publicity who thinks that can adjust to my needs, I would be most grateful!

run a social network CPA offer.

There's a couple on Copeac, you can also check out the other CPA networks.

I suggest you do more research to better understand and build a game plan, rather than stick things in and see if they fit.

It'll help you and your community in the long run.