Seems like this is just taking your own ad out on a network and they routate you on a banner system. Sorta like ValueClick? To me I would say 10% yes, 90% no as more and more people dislike popups or interact with banners. In fact pop ups seem to place a negative image about a product/service since it is more of an annoyance that gets asociated with the product.
I would suggest finding friendly systems that would allow you to make mention of your board, search engine placement is also very key (SubmitWolf is very good for this) and simple word of mouth by your users. Maybe make a contest out of a referal program and see who can bring int he most amount of new users?
Once you get a foot hold you will have a steady stream of users
