New forms of marketing are seldom accepted with arms wide open. When online advertising first became a thing, marketers looked askance, wondering how this badly fractured media almost specifically geared toward basement-dwellers under 30 could ever possibly replace broadcast and print. Fast forward about 20 years, and we’ve seen how well it works. Now, we’re having a similar moment about social media marketing, and new studies are showing how shaping influence can be a big gain for marketers.  Travel brands, for example, routinely turn to shaping influence as a means to connect with users on social media, going after…