Media Buying 101: What It Is and How It Works [+15 Platforms to Use]
Hubspot
APRIL 2, 2021
Gelb continued,"Now, let's say you're a CEO who wants to promote a 'letter to our customers.' Supply-side platforms (SSP) where publishers sell their ad inventory. The ad exchange marketplace where advertisers and publishers buy or sell ad inventory through real-time bidding (RTB). It's the publisher version of the DSP.
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