organization that buys an online ad campaign.
an owner for the campaigns, banners, text ads, or trackers
a person who enters into an agreement with a corporation or entity in order to promote his products, services or website in the internet using any of various advertising means, such as pay-per-click, pay-per-lead, banner advertising, lead generation, etc.
An individual or organization interested in running advertisement campaigns including banner, tile, email or sponsorship advertisements, for themselves or a client.
The company or person whose banner ad is displayed on a web site.