CPM Advertising

Cost per impression, often abbreviated to CPI or CPM for Cost per thousand impressions, is a phrase often used in online advertising and marketing related to web traffic. It is used for measuring the worth and cost of a specific e-marketing campaign. This technique is applied with web banners, text links, email, and opt-in e-mail advertising. Although opt-in e-mail advertising is more commonly charged on a cost per action (CPA) basis, sometimes CPM is used.