This paper deals with contemporary and future challenges to regulations regarding communication networks, in particular the Internet. Market, economic, social and public aspects of regulations are elaborated. The need for smart, efficient and solution-seeking regulations ranging from deregulation, self- and co-regulation to statutory regulation, is explained. Three dimensions of such regulations - type, impact, and topic - are presented in relation with Future Network and Future Internet, which includes, among others, Internet of Things and cloud computing. These issues are discussed in the context of the Digital Agenda for Croatia.