while not the first name that comes to mind when media sellers consider promoting their excess inventory, can nevertheless provide a worthwhile outlet through which they may reach eBay's huge consumer and business-oriented audience. Since eBay membership and listing fees are negligible, this is an avenue worthy of exploration.
is a media marketplace that matches publishers with CPC (cost-per-click) and CPA (cost-per-action) hybrid deals provided by a range of advertisers. The exchange operates in real-time. They support all IAB-standard banner sizes.