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ad impression (An ad that is served to a user's screen either as a pushed (sent by e-mail) or pulled ad (requested by a user's browser). This includes measurement of responses from an ad delivery system to a user's browser); impression (An ad that is served to a user's screen either as a pushed (sent by e-mail) or pulled ad (requested by a user's browser). This includes measurement of responses from an ad delivery system to a user's browser) |