eh, if you are a content provider, the question is "who pays more" - I can't answer that question. but eh, if you have a popular site, I don't think what advertisers are willing to pay varies that much. I know most of the sites I advertise on, I saw the site first, then I tried to figure out how to get an ad on the site.

that, and I think the time-based auction model is less vulnerable to fraud than charging on total impressions or clickthroughs. Hopefully other ad networks will copy that model.

> I think the time-based auction model is less vulnerable to fraud than charging on total impressions or clickthroughs.

Here we are fully in agreement.

It's just that if you have a site that has (tens of) millions of impressions per day that it can be quite hard to get that inventory sold, and the ad delivery network will have to be able to keep up with the demands such sites make on its infrastructure.

If I have some time next week I think I'll set up a trial account with them and see how well it performs as compared with adsense on the same body of traffic.