you might want to knock a little harder cuz they have been all day so i belev that they might be right now..hehe....sorry im a little myself right now...
You have to pay to advertise. And I don't think they're going to let a competitor (that is, if you're appealing to the same demographic) advertise on this site.
It would be beneficial on both parts. If my site is actually competition then it will be getting enough hits to make a banner exchange worth while for both sites. It's all about viral marketing!