I think you could still do ads, but they would have to "come home" to the actual site, and the site itself would be responsible for negotiating ad sales. I thi

I think you could still do ads, but they would have to "come home" to the actual site, and the site itself would be responsible for negotiating ad sales. I think this would be the best bet for small advertisers, in the long run. Yes, there's no chance that small advertisers could afford to advertise on a large site, but most small advertisers want a more-targeted site, anyways. I tried to buy super-targeted ad-space late last year, and it is nearly impossible to buy ad space directly from smaller web sites. They either a) don't do ads, or b) only use a larger ad provider. I think a lot of smaller sites are giving up a lot of ad revenue by not managing the ads themselves (regional competition vs. global competition, as one example).