Bitcointalk should have an OperationFabulous ad box.

[mc_lovin]

I'm sure a small operation fabulous banner box on the bottom of the site would net you guys some serious bitcoin with your high traffic.

[theymos]

The forum is big enough that we could sell ads directly, without having to pull third-part JavaScript. But I'd rather not have any ads at all, if possible.

[helloworld]

People are paying 10 BTC to have some special 'donator' status and not expecting to place ads in return.

So it follows that advertisers would have to pay much more than that.