PPCBidder - 3:29 pm on Nov 25, 2004 (gmt 0)

IMO, the problem is only when a specific domain gets up to 5,6,7,8 ads. If there are 2 or 3, it just shows that the merchant is successful and likely relevant - which the surfer can take into consideration.

I associate it to the yellow pages as an example. Total dominance would be unfair, but the larger institutions should have the right to larger ads and more space. Limiting to 1 ad per domain is like restricting everyone to 8pt text in the yellow pages.

In my opinion, the model of domain owner + 2 more 'open' slots would make the most sense, from almost all angles of the equation. User satisfaction, revenues, and also fairness.

If I had to flesh it out further I would do this:
1-2 total ads (limit 1 per domain)
3-6 total ads (limit 2 per domain)
7+ total ads (limit 3 per domain)

[edited by: PPCBidder at 3:35 pm (utc) on Nov. 25, 2004]