does anybody know if these coupon post sites/forums actually make money and if so how?

[damac]

I was just curious to wonder if anybody knows the business models of all these coupon sites on their own .com address and how they make money if they even do, or if its like a labor of love type thing(although I would doubt that). I see allot of these coupon post sites with forums that have tons of posts, allot of which I find very usefull. Their are so many out their I just had to wonder if its a profitable business to run a site like this where I assume they only make money through banner click ads, or referals?

 

[konichiwa]

Advertising, advertising, advertising.