Publishers reserve slots on their pages for display ads. When a page loads, an auction fills each slot with the winning advertiser's banner. You design a creative in standard sizes, set targeting and a CPM bid, and your banner appears to matching users.
On FroggyAds, display is bought on a CPM basis from $0.10 across desktop and mobile web. You control GEO, device and category targeting and keep quality high with Adscore filtering.