Mobile optimization and responsive design will be important in 2016 as most content consumption shifts to mobile devices and Google prioritizes mobile-friendly websites in search results. Video content and creative, attention-grabbing content can drive large reach, while relationship marketing through valuable, trust-building content and new ad formats like Facebook lead ads that keep users on the platform can help build long-term relationships with customers. Improved analytics will also be key to better tracking the success of digital marketing strategies.