From my Forbes.com blog The New Persuaders:
Facebook has Sponsored Stories. Twitter has Promoted Tweets. Buzzfeed has Promoted Posts. They’re all based on social gestures and activities, each targeted to people, whether friends or birds of a feather, who might share similar interests. Now, a company has come up with a new way of targeting people using one of the most common social gestures of our time: the hashtag.
If you’re bothering to read this, you probably already know hashtags are those short subject labels, starting with a # or hash sign, that describe the topic a tweet or other shared item is about. They didn’t start with Twitter, but they became popular thanks to their common use in tweets. That use has spread to other social networks, from Pinterest to Instagram (though not very often on Facebook, for some reason).
Today, social ad firm RadiumOne announced it’s making hashtag targeting available to advertisers so they can reach like-minded consumers in real-time across the Web based on the hashtags they’re using. So, for example, says RadiumOne founder and CEO Gurbaksh Chahal, Nike can reach consumers who use the hashtag #nike, or #olympics, or #fitness with ads for running shoes. Or McDonald’s could target people who tag their tweet or Instagram photo #burgers or even #hungry. …