This document discusses managing children's internet use on mobile devices. It notes that over 50% of people own smartphones and tablets. Different operating systems require different management approaches. Common approaches are self-regulation with no limits or parent/device regulation with limited screen time. Tools discussed include router-based filters, app-based filters, and combining routers and apps. Specific tools mentioned are OpenDNS, Mobicip, provider controls, and Skydog. Adapting the management plan as children mature is advised through updated contracts and open communication.