What is the difference between OpenX Market and an ad exchange?
The OpenX Market is similar to some ad exchanges, those that allow real-time bidding on ad inventory. However, unlike the main ad exchanges, the OpenX Market has been built from the ground up as a place for advertisers to buy quality inventory on niche sites. It is not a dumping ground for inventory that ad networks are unable to fill. The OpenX Market auction is a CPM auction, so that you are guaranteed to beat a floor price and are not at risk of losing inventory on ineffective advertisers. The system’s transparency ensures that any available inventory is sold at a fair price dictated solely by the market.