Banner Ad
An advertisement that is displayed on a web page or email. Typically the ad is “clickable” and redirects the respondent to a specific web page. Banner ads are typically priced per impression (cost per impression or CPI), per thousand impressions (CPM) or per click (CPC).
Campaign
A process by which a website owner acquires website visitors, particularly visitors that convert, as well as the conversion and retention processes that follow the acquisition. Campaigns can utilize on-line ads, links, outbound emails, and even off-line triggers such as direct mail, to acquire targeted visitors.