Pinterest has begun piloting promoted pins, which act as billed. The paid ads appear as pins with a “promoted pin” callout and an info icon that identifies the brand and reasoning for the placement. None of this is terribly surprising for the social network valued at 2.5 billion. More interesting is the question of monetization and whether their pricing model will capitalize on the great deal of referral traffic. Letting users transact on the platform could also be lucrative, but then again, how would that make them any different from the Fancy?