Kristen Alexander Voice Network Badge Voice Network contributor, an ongoing writer for our guest opinion column. Opinion ContributorKristen Alexander is the CMO of Certain and leads the go-to-market strategy, demand generation, product marketing and corporate communications. Voice Marketers Can Tap Into Mobile Advertising to Create a Successful Event Take advantage of consumers' love for their devices. Voice Consumers Yearn for Personalization at Events. Are Brands Taking the Hint? What's the point of engaging if no one feels a bond with the company?