During our weekly business dinner meeting (there's a group of us working on a website) Paul (one of the partners in the venture) mentioned one of his other websites that pulls in $1,500 a month revenue and he does absolutely nothing at all.
There are other people providing the content, other companies handling the billing; all he does is collect monthly checks. Mark [1] and I pressed for details. Heck, I could stand to use an extra $1,500 a month for doing absolutely nothing.
It all derives from generating traffic through his site from your site. The more traffic you generate towards his, the more money you make. Granted, the sites are porn related, but really, the porn companies are the only ones that make any money. Sad, but true.