Often abbreviated to CPI or CPM, this is a standard measurement used for determining the cost effectiveness for a specific medium or channel. It is calculated by dividing the rate or specific advertisement cost by the circulation or number of readers/ users.

CBT is foremost applied with banners, emails, text links,, and opt-in email advertising. Although opt-in e-mail advertising is more commonly charged on a cost per action (CPA) basis, sometimes CPT is used.

See also:
Cost per acquisition (CPA)
Cost per click (CPC)
Reciprocal links
Ad rotation
Ad impression
Behavioural Targeting
Contextual Marketing
RSS
E-Marketing
User Session
Deep Linking