Robert KeenanOpinion Contributor@robkeenan11rkeenan@keenandigitalconsult.comRobert Keenan is the president of Keenan Media, LLC, a consultancy firm providing digital, content and marketing services to brands and agencies. Voice How Personalizing Voice Skills Can Give Your Brand a Digital Boost Gartner predicts that the smart speaker market will reach $3.5 billion in 2020.